Gas Questions Objective 2025 PDF

CHEMISTRY POINT (SONU SIR) GUESS QUESTION OBJECTIVE (2025) Solution (foy;u½ 1. Molarity is expressed as ( (a) mol/L (molL–1) (b) g/liter (c) li...

CHEMISTRY POINT (SONU SIR) GUESS QUESTION OBJECTIVE (2025) Solution (foy;u½ 1. Molarity is expressed as ( (a) mol/L (molL–1) (b) g/liter (c) litre/mol (d) mol/kg 2. Molality is expressed as ( (a) mol/kg (b) mol/L (c) Both a and b (d) None of these 3. If 18g of glucose is present in 1000 g of solvent, the solution is said to be: - (a) 1 molar (b) 0.1 molal (c) 0.1 molar (d) 0.5 molal 4. The colligative properites of a dilute solution depend upon :- (a) the nature of the solute ( (b) the number of particles of solute ( (c) the number of particles of solvent ( (d) the nature of solvent ( 5. The osmotic pressure of a solution is expressed by the relation: - 𝑪𝑹 𝑪𝑻 𝝅 𝑹𝑻 (a) 𝝅 = 𝑻 (b) 𝝅 = 𝑹 (c) 𝑪 = 𝑹𝑻 (d) 𝝅 = 𝑪 6. Which of the following is a colligative property? ( (a) Osmotic pressure ( (b) Boiling point ( (c) Vapour pressure ( (d) Freezing point ( 7. The Van’t Hoff Factor of Ca (NO3)2 is (Ca (NO3)2 ) (a) 1 (b) 2 (c) 3 (d) 4 Note :- Total number of ions ( =3 8. Which is not affected by temperature? ( (a) Normality ( (b) Molality ( (c) Molarity ( (d) Formality ( 9. 234.2 gm of sugar syrup contains 34.2 gm of sugar. What is the molal concentration of the solution? (a) 0.1 (b) 0.5 (c) 5.5 (d) 55 10. The boiling point of water decreases at high mountains because:- (a) Atmospheric pressure is low ( (b) Temperature is low (c) Pressure in high ( (d) More air ( 11. Which of the following equation represents osmotic pressure? 𝑪𝑻 𝑹𝑪 𝑹𝑻 (a) P=CRT (b) P = 𝑹 (c) P = 𝑻 (d) P = 𝑪 12. Which of the following is the property of ideal solution?( (a) Obey Raoult’s law ( (b) Does not obey Raoult’s law ( (c) Both a and b ( 𝒂 𝒃 (d) None of these ( 13. By osmosis semipermeable membrane (SPM) allows to pass – (a) Solute molecules ( (b) Solvent molecules ( (c) Complex molecules ( (d) Simple ion ( 14. The van’t Hoff factor of 0.1 M Ba(NO3)2 solution is 2.74. The degree of dissociation is :- 𝐌 Ba(NO3)2 (a) 91.3% (b) 87% (c) 100% (d) 74% 15. A 5% solution of cane sugar ( Mol. Wt. = 342) is isotonic with 1% solution of substance X. The molecular weight of X is:- 1 CHEMISTRY POINT (SONU SIR)  𝟓% 𝐗 𝟏% 𝐗 (a) 136.2 (b) 68.4 (c) 34.2 (d)171.2 16. A solution has an osmotic pressure of 0.0821 atm at 300 K. Its concentration would be:- 𝟑𝟎𝟎 𝐊 (a) 0.66M (b) 0.32 M (c) 0.066 M (d) 0.0033M 17. Azeotropic mixture of HCl and H2O has (𝐇𝐂𝐥 H2O (a) 48%HCl (b) 22.2%HCl (c) 36% HCl (d) 20.2%HCl 18. If 2 gm of NaOH is dissolved in 200 mL of a solution then the molarity of the solution is :- 𝒎𝑳 𝐍𝐚𝐎𝐇 (a) 0.25 (b) 0.5 (c) 5 (d) 10 19. Valume of one mole of any gas at NTP is (𝐍𝐓𝐏 (a) 11.2 litre (b) 22.4 litre (c) 10.2 litre (d) 22.8 litre 20. Which one of the following will produce maximum depression in freezing point? (a) K2SO4 Total ions = 3 (b) NaCl Total ions =2 (c) Urea (0) (d) C6H12O6 (0) 21. Which of the following is not a colligative property? ( (a) Depresion in freezing point ( (b) Elevation in boiling point ( (c) Relative lowering of vapor pressure ( (d) Optical activity ( 22. Which is true for mole fraction? ( (a) X [MnCl4]2– > [CoCl4]2– (b) [MnCl4]2– > [Fe(CN)6]4– >[CoCl4]2– (c) [MnCl4]2– > [CoCl4]2– > [Fe(CN)6]4– (d) [Fe(CN)6]4– > [CoCl4]2 > [MnCl4]2– 2– 100. The magnetic moment of [NiCl4] is :- [NiCl4]2– (a) 1.82BM (b) 5.46 BM (c) 2.82 BM (d) 1.41 BM 101. Geometry, bybridisation, and magnetic moment of the ions [Ni(CN)4] , [MnBr4]2-, and [FeF6]3– 2- respectively are :- [Ni(CN)4]2-, [MnBr4]2-, and [FeF6]3– (a) tetrahedral sp3(5.9) , spuare planar dsp2(O) , octahedral sp3d2(4.9) (b) tetrahedral dsp2(o), square planar sp3(5.9), octahedral sp3d2 (5.9) (c) square planar, dsp2(5.9), tetrahedral sp3(4.9), octahedral d2sp3 (O) (d) squareplanar, dsp2(O) , tetrahedral sp3 (5.9), octahedral sp3d2 (5.9) 102. Which among the following has the higest magnetic moment ? (a) [Cr(H2O)6]3+ (b) [Fe(H2O)6]3+ (c) [Zn(H2O)6]2+ (d) [Ni(CN)4]2– 103. The oxidation number of potassium ferrocyanide and potassium ferricyanide are respectively:- 𝐅𝐞 (a) +2 , +3 (b) +3, +2 (c) +1, +2 (d) +2, +4 104. Which of the following ion is colourless? 58 CHEMISTRY POINT (SONU SIR)  (a) Cu+ (b) Co2+ (c) Ni2+ (d) Fe3+ 105. How many ions are product from the complex [Co(NH3)6 ]Cl2 in solution? [Co(NH3)6 ]Cl2 (a) 6 (b) 4 (c) 3 (d) 2 106. Which of the following has magnesium? (a) Chlorophyll (b) Haemocyanin (c) Carbonic anhydrase (d) Vitamin-B12 107. The pair [Co(NH3)6][Cr(CN)6] and [Cr(NH3)6][Co(CN)6] [Co(NH3)6][Cr(CN)6] [Cr(NH3)6][Co(CN)6] (a) Linkage isomers (b) Ionisation isomers (c) Co-ordination isomers (d) None of these 108. Which of the following is not show linkage isomerism? (a) NO2– (b) CN– (c) SCN– (d) OH– 109. CH3–Mg–Br is an organometallic compound due to presence of :- CH3–Mg–Br (a) Mg–Br bond (b) C–Mg bond (c) C–Br bond (d) C–H bond 110. Which of the following pairs represents linkage isomers? (a) [Cu(NH3)4][PtCl4] and [Pt(NH3)4][CuCl4] (b) [Pd(PPh3)2 (NCS)2] and [Pd(PPh)3(SCN)2] (c) [Co(NH3)5(NO3)] SO4 and [Co(NH3)5(SO4)NO3(d) [PtCl2(NH3)4]Br2 and [PtBr2(NH3)4]Cl2 111. Which of the following can not show linkage isomerism? (a) 𝐍𝐎𝟐– (b) SCN (c) CN (d) NH3 112. Which of the following show geometrical isomerism? (a) [MA2B2 ]– Tetrahedral (b) [MABCD] – Tetrahedral (c) [MA3B]–Square planar (d) [MABCD]– Square planar 113. Which of the following complexes show ionization isomerism? (a) [Cr(NH3)6]Cl3 (b) [Cr(en)2]Cl2 (c) [Cr(en)3]Cl3 (d) [Co(NH3)5Br]SO4 114. The number of unpaired electrons in [NiCl4]2– ,[Ni(CO)4] and [Cu(NH3)4]2+ respectively are :- [NiCl4]2–, [Ni(CO)4] and [Cu(NH3)4]2+ (a) 2,2,1 (b) 2, 0, 1 (c) 0, 2, 1 (d) 2, 2, 1 115. Which has the highest paramagnetic character? (a) [Cr(H2O)6]3+ (b) [Fe(H2O)6]2+ (c) [Cu(H2O)6]2+ (d) [Zn(H2O)6]2+ 116. The number of unpaired electron in [Ni(CO)4] is :- [Ni(CO)4] (a) 0 (b) 1 (c) 3 (d) 4 117. Which of the following is not considered as organometallic compounds? (a) Cis-platin (b) Ferrocene (c) Zeise’s salt (d) Grignard reagent 118. Ligand is the anticancer drug cis-platin are :- (a) NH3, Cl (b) NH3, H2O (c) Cl,H2O (d) NO, Cl 119. The pair [Co(NH3)5Br]SO4 and [Co(NH3)SO4]Br are:- [Co(NH3)5Br]SO4 [Co(NH3)SO4]Br (a) Ionisation isomers (b) Linkage isomers (c) Hydrate isomers (d) Coordination isomers 120. The sum of the coordination number and oxidation number of the metal M in the complex [M(en)2(C2O4)]Cl is :- 𝐂𝐨𝐦𝐩𝐥𝐞𝐱 [M(en)2(C2O4)]Cl 𝐌 (a) 6 (b) 7 (c) 8 (d) 9 121. The compound [Pt(NH3)2Cl2]can exhibit:- [Pt(NH3)2Cl2] 59 CHEMISTRY POINT (SONU SIR)  (a) Linkage isomerism (b) Coordination isomerism (c) Hydrate isomerism (d) Geometrical isomerism 122. The type of isomerism shown by the complex [CoCl2(en)2] is :- [CoCl2(en)2] (a) Geometrical isomerism (b) Coordination isomerism (c) Hydrate isomerism (d) Linkage isomerism 123. The hybridization state of Fe in [Fe(CN)6]3- and [[Fe(H2O)6]3+ is :- [Fe(CN)6]3- and [[Fe(H2O)6]3+ 𝐡𝐲𝐛𝐫𝐢𝐝𝐢𝐳𝐚𝐭𝐢𝐨𝐧 2 (a) dsp and d sp2 3 (b) sp d and dsp 2 (c) sp3d2 and dsp2 (d) d2sp3 and sp3d2 124. Which of the following has tetrahedral geometry? tetrahedral geometry (a) [Co(NH3)6]3+ (b) [Ni(CN)4]2- (c) [Fe(CO)5] (d) [NiCl4]2– 125. The number of geometrical isomers in [Co(NH3)3(NO3)3] is :- [Co(NH3)3(NO3)3] (a) 0 (b) 3 (c) 2 (d) 4 126. Which of the following is not an organometallic compound? (a) RMgx (b) (C2H5)2Zn (c) (CH3)4Sn (d) C2H5ONa 127. Which of the following is 𝝈 bonded organometallic compound? (a) Zeise’s salt (b) Ferrocene (c) Dibenzene chromium (d) (CH3)3Al 128. Which of the following is 𝝅 bonded organometallic compound? (a) Zeise’s salt (b) (CH3)3As (c) (C2H5)2Zn (d) CH3ONa 129. Wilkinson catalyst contains:- 𝐖𝐢𝐥𝐤𝐢𝐧𝐬𝐨𝐧 𝐜𝐚𝐭𝐚𝐥𝐲𝐬𝐭 (a) Rhodium (b) Iron (c) Aluminium (d) Cobalt 130. Vitamin B12 contains:- (2024M) 𝐕𝐢𝐭𝐚𝐦𝐢𝐧 B12 (a) Cobalt (b) Magnesium (c) Iron (d) Nickel 131. Which of the following octahedral complexes does not show geometrical isomerism? (a) [MA3B3] (b) ([MA4B2] (c) [MA5B] (d) [MA2B4] 132. Which of the following complex used in anticancer agent? 𝐜𝐨𝐦𝐩𝐥𝐞𝐱 (a) mer–[Co(NH3)3Cl3] (b) cis–[PtCl2(NH3)2] (c) cis–K2[PtCl2Br2] (d) Na2[CoCl4] 133. Which of the following compound is not a double salt? 𝒅𝒐𝒖𝒃𝒍𝒆 𝒔𝒂𝒍𝒕 (a) Carnallite (b) Sodium chloride (c) Mohr’s salt (d) Potash alum 134. Which of the following is not an organometallic compound? (a) Ferrocene (b) Cis-platin (c) Zeise’s salt (d) Grignard reagent 135. Which of the following is a double salt? 𝐝𝐨𝐮𝐛𝐥𝐞 𝐬𝐚𝐥𝐭 (a) Carnallite (b) Mohr’s salt (c) Potash alum (d) All the correct 136. Which of the following is non-ionisable? (a) [Co(NH3)6 ]Cl2 (b) [Co(NH3)4Cl2]Cl (c) [Co(NH3)3Cl3] (d) [Co(NH3)5Cl]Cl2 137. Which of the following is not a paramagnetic? 𝐩𝐚𝐫𝐚𝐦𝐚𝐠𝐧𝐞𝐭𝐢𝐜 (a) [Cr(H2O)6]3+ (b) [Fe(H2O)6]2+ (c) [Cu(H2O)6]2+ (d) [Zn(H2O)6]2+ 138. Which of the following complexes are heteroleptic ? (a) [Co(NH3)4Cl2]+ (b) [Fe(NH3)4Cl2]+ (c) [Co(NH3)4Cl2]+ (d) All of these 60 CHEMISTRY POINT (SONU SIR) 139. Which of the following complexes are homoleptic? (a) [Fe(CN)6]3– (b) [Ni(CN)4]2– (c) [Ag(CN)2]2– (d) All of these 140. Which of the following is paramagnetic? (a) Zn2+ (b) Cu+ (c) Sc3+ (d) Mn2+ 141. The oxidation number of Co in [Co(en)3]2(SO4)3 is:- [Co(en)3]2(SO4)3 𝐂𝐨 (a) +2 (b) +3 (c) +4 (d)+ 142. The coordination number of Cr in [CrCl2(ox)2]3– is:- [CrCl2(ox)2]3– 𝐂𝐫 (a) 6 (b) 5 (c) 4 (d) 3 143. The formula of the coordination compound tetraammine chloridonitrito-N-cobalt (III) chloride is :- tetraammine chloridonitrito-N-cobalt (III) chloride (a) [Co(NH3)4Cl(ONO)]Cl2 (b) [Co(NH3)4Cl2(NO2)]Cl (c) [Co(NH3)4Cl(NO2]Cl (d) [Co(NH3)4(NO2)]Cl3 144. The name of complex [Fe(CN)6]3– is :- Complex [Fe(CN)6]3– 𝐈𝐔𝐏𝐀𝐂 (a) tricyanidotrerrate (III) ion (b) hexacyanido ferrate (III) ion (c) hexacyanidoiron (III) (d) hexacyanidoferrate (II) ion 145. Which of the following will not give test for Cl– with AgNO3 (aq) at 250C? 𝟐𝟓𝟎 𝐂 AgNO3 𝐂𝐡𝐥𝐨𝐫𝐢𝐧𝐞 𝐢𝐨𝐧 (a) CoCl3.5NH3 (b) CoCl3.6NH3 (c) CoCl3.3NH3 (d) CoCl3.4NH3 146. The geometrical shape of sp3 is :- (2013A) sp3 (a) Octahedral (b) Linear (c) Tetrahedral (d) Trigonal planar 147. The geometrical shape of d2sp3 is :- (2013A) d2sp3 (a) Octahedral (b) Linear (c) Tetrahedral (d) Trigonal planar 148. The oxidation state of Ni in [Ni(CO)4] is :- (2014A) [Ni(CO)4] 𝐍𝐢 (a) 1 (b) 0 (c) 2 (d) 3 149. The number of possible isomers for the complex [Co(C2O4)2 (NH3)2] is :- (2011A) Octaheral complex complex [Co(C2O4)2 (NH3)2] (a) 1 (b) 2 (c) 3 (d) 4 150. The IUPAC name of [Co(NH3)6]Cl3 is :- (2017) [CO(NH3)6]Cl3 𝐈𝐔𝐏𝐀𝐂 (a) hexaamamminecobalt (III) chloride (b) hexaamminecobaltate (III) chloride (c) hexaamminecobalt (III) trichloride (d) none of these 151. [Co(NH3)6]Cl3 is which type of complex compound ? (2017C) [Co(NH3)6]Cl3 (a) Cationic complex ( (b) Anionic complex ( (c) Neutral complex ( (d) None of these ( 152. The compound having tetrahedral geometry is :- (2018A) (a) [NiCl4]2– (b) [Ni(CN)4]2– (c) [PdCl4]2– (d) [NiCl4]2– and [PdCl4]2 153. The hybridization of Ni in [Ni(CN)4]2– is :- (2018C) [Ni(CN)4]2– 𝐍𝐢 (a) dsp2 (b) dsp3 (c) sp3d (d) sp3 154. The IUPAC name of K3[Cr(C2O4)3] is :- (2010A) K3[Cr(C2O4)3] 𝐈𝐔𝐏𝐀𝐂 (a) potassium trioxalatochromate (III) (b) potassiumtrioxalato (III) (c) potassium trioxalatochromium (VI) (d) potassium trioxalatochromate (IV) 155. Which statement is in correct? (2022A) (a) [Ni(CO)4]–Tetrahedral, paramagnetic (b) [Ni(CN)4]2– Square planar, diamagnetic (c) [Ni(NH3)6]2+ – Octahedral, paramagnetic (d) [NiCl4]2––Tetrahedral, paramagnetic 156. Which of the following is paramagnetic? (2022A) 61 CHEMISTRY POINT (SONU SIR)  (a) [Ni(CO)4] (b) [Ni(CN)4]2– (c) [NiCl4]2– (d) [Co(NH3)6]3+ 157. Who gave the first important theory of coordination compounds? (2023A) (a) Slater (b) Pauling (c) Werner (d) Lewis 158. Which of the following is an example of double salt? (2023A) (a) Bleaching power (b) K4[Fe(CN)6] (c) Hypo (d) Potash alum 159. Which of the following is a bidentate ligand? (2023A) 𝐛𝐢𝐝𝐞𝐧𝐭𝐚𝐭𝐞 𝐥𝐢𝐠𝐚𝐧𝐝 (a) EDTA (b) Ethylene diamine (c) Acetate ion (d) Pyridine 160. [Co(NH3)5Br]SO4 and [Co(NH3)5SO4]Br are related to each other as :- (2023M) [Co(NH3)5Br]SO4 [Co(NH3)5SO4]Br (a) Ionisation isomers ( (b) Hydrate isomers ( (c) Coordination isomers ( (d) Linkage isomes ( 161. The geometry of [Cu(NH3)4]2+ is square planar. The hybrdisation of Cu2+ in this complex ion is :-(2021M) [Cu(NH3)4]2+ 𝐬𝐪𝐮𝐚𝐫𝐞 𝐩𝐥𝐚𝐧𝐚𝐫 𝐂𝐮+𝟐 3 3 2 2 (a) sp (b) sp d (c) dsp (d) dsp3 162. The geometry of which of the following complex ion is not tetrahedral? (2022M) (a) [Ni(CO)4] (b) [NiCl4]2– (c) [Ni(CN)4]2– (d) [MnCl4]2– Chemical kinetic 1. For reaction, 2A → 𝑩, the rate of reaction would be represented by which of the following? [2023M] 𝟐𝑨 → 𝑩 𝟏 𝒅[𝑨] 𝒅[𝑩] 𝟏 𝒅[𝑨] 𝟏 𝒅[𝑩] (a) 𝟐 (b) − (c) − 𝟐 (d) 𝟐 𝒅𝒕 𝒅𝒕 𝒅𝒕 𝒅𝒕 2. The rate constant of a reaction depends upon which of the following? [2023M] (a) Temperature (b) Mass (c) Weight (d) Time 3. Which of the following is not a first order reaction? [2023M / 2019A / 2022A / 2024A] 𝑯+ (a) CH3COOCH3+ H2O→ 𝑪𝑯𝟑 𝑪𝑶𝑶𝑯 + 𝑪𝑯𝟑 𝑶𝑯 (b) CH3COOC2𝑯𝟓 + NaOH→ 𝑪𝑯𝟑 𝑪𝑶𝑶𝑵𝒂 + 𝑪𝟐 𝑯𝟓 𝑶𝑯 (c) 𝟐𝑯𝟐 𝑶𝟐 → 𝟐𝑯𝟐 𝑶 + 𝑶𝟐 (d) 𝟐𝑵𝟐 𝑶𝟓 → 𝟒𝑵𝑶𝟐 + 𝑶𝟐 𝑺𝒖𝒏 𝒍𝒊𝒈𝒉𝒕 4. The order of reaction H2(g) + Cl2(g) → 𝟐𝑯𝑪𝒍 (𝒈) in water is :- [2023M/2021M/2011A] 𝑺𝒖𝒏 𝒍𝒊𝒈𝒉𝒕 𝑯𝟐 (𝒈) + 𝑪𝒍𝟐 (𝒈) → 𝟐𝑯𝑪𝒍(𝒈) (a) 3 (b) 2 (c) 1 (d) 0 5. In a chemical reaction, a catalyst :- [2023M] (a) alters the amount of products ( ) (b) lower the activation energy ( ) (c) decreases H of forward reaction ( H ) (d) Increases H of forward reaction ( 𝐇 ) 6. The unit of rate constant for first order reaction is :- [2009A, 2016C, 2009A, 2024M] (a) sec-1 (b) molL-1s-1 (c) mol-1 Ls-1 (d) molL-2L2s-1 7. The unit of rate constant for third order reaction is:- [2017C] 62 CHEMISTRY POINT (SONU SIR)  (a) molL-1s-1 (b) mol-2L2s-1 (c) s-1 (d) mol-1Ls-1 8. The sum of power of concentration of reactants in rate law expression is called:- (a) molecularity of reaction (vfHkfØ;k dh vkf.odrk½ (b) order of reaction (vfHkfØ;k dh dksfV½ (c) rate of reaction (vfHkfØ;k dk nj½ (d) addition reation (;ksx’khy vfHkfØ;k½ 9. The unit of rate constant for second order reaction is :- [2019C, 2024A] (a) molL-1 s-1 (b) mol-1 Ls-1 (c) mol-1 L2 s-1 (d) s-1 10. Which of the following factors affect the rate of a reaction? [2022M] (a) Temperature ( ) (b) Pressure ( ) (c) Concentration ( ) (d) All of the above ( ) 11. According to law of mass action, the rate of a chemical reaction is proportional to:- [2021M] (a) concentration of reaction (vfHkfØ;k dk lkanz.k½ (b) molar concentration of reactants (vfHkdkjd dk eksyj lkanz.k½ (c) concentration of products (mRikn dk lkanz.k ) (d) molar concentration of products (mRikn dk eksyj lkanz.k½ 12. The rate constant of a reaction is 3× 𝟏𝟎−𝟑mol L-1 min-1. The order of reaction is :- 𝟑 × 𝟏𝟎−𝟑 mol L-1 min-1 (a) 0 (b) 1 (c) 2 (d) 1.5 13. The number of reacting species participating in an elementary reaction is called:- 𝒔𝒑𝒆𝒄𝒊𝒆𝒔 (a) Order of reaction (vfHkfØ;k dh dksfV½ (b) Molecularity of reaction (vfHkfØ;k dk vkf.odrk½ (c) Rate of reaction (vfHkfØ;k dk nj½ (d) None of these (buesa ls dksbZ ugha½ 14. The unit of rate constant for reaction depends upon:- Reaction (a) rate of reaction (vfHkfØ;k dk nj½ (b) order of reaction (vfHkfØ;k dh dksfV½ (c) molecularity of reaction (vfHkfØ;k dk vkf.odrk½ (d) all of these (buesa ls lHkh a½ 15. The unit of rate constant for zero order reaction is:- [2022M] (a) mol-1Ls-1 (b) molL -1s-1 (c) s-1 (d) mol-2L2s-1 16. The rate of a chemical reaction :- [2022A] (a) increases with time ( (b) decreases with time ( (c) remains constant with time ( (d) may increase or decrease ( 17. The rate of reaction; 2NO+ Cl2 →2NOCl is doubled when concentration of Cl2 is doubled and becomes eight times when concentration of both NO and Cl2 are doubled. What is the order of reaction? 𝟐𝑵𝑶 + 𝑪𝒍𝟐 → 𝟐𝑵𝑶𝑪𝒍 𝑪𝒍𝟐 𝑵𝑶 𝑪𝒍𝟐 (a) 2 (b) 3 (c) 4 (d) 1 𝒙 [𝑩]𝒚 18. The rate of reaction is expressed by rate = 𝒌[𝑨] the order of reaction is :- [2017C] 63 CHEMISTRY POINT (SONU SIR)  = 𝑲[𝑨]𝒙 [𝑩]𝒚 𝒙 (a) 𝒙 − 𝒚 (b) 𝒙 + 𝒚 (c) (d) 𝒙, 𝒚 𝒚 19. 𝒕𝟏 for first order reaction is :- [2016A, 2020A] 𝟐 𝒕𝟏 𝟐 𝟎.𝟔 𝟎.𝟔𝟗𝟑 𝟎.𝟔𝟖𝟑 𝟎.𝟏𝟎 (a) (b) (c) (d) 𝑲 𝒌 𝑲 𝑲 20. 𝒕𝟏 for zero order reaction is :- [2017A, 2021M] 𝟐 𝒕𝟏 𝟐 𝑪𝒐 𝑪 𝟎.𝟔𝟗𝟑 𝑪 (a) (b) 𝟐𝑲𝟎 (c) 𝟎 (d) 𝟎.𝟔𝟗𝟑 𝑲 𝟐𝑲 21. The rate for a zero reaction A + B → 𝑪 is:- [2021A] 𝑨+𝑩→𝑪 (a) Rate = 𝑲[𝑨]𝟎 [𝑩]𝟎 (b) Rate = 𝑲[𝑨]𝟏 [𝑩]𝟎 (c) Rate = 𝑲[𝑨]𝟎 [𝑩]𝟏 (d) none of these 22. Rusting of iron is an example of :- (a) fast reaction ( (b) slow reaction ( (c) moderate reaction ( (d) very fast reaction ( 23. The unit of rate and rate constant is same for the reaction of which order? [2021M] (a) Zero (b) First (c) Second (d) Third 24. The unit of molar concentration is :- [2023M] (a) molkg-1 (b) mol L-1 (c) mol-1 (d) L-1 kg-1 25. The unit of rate of reaction is :- [2021A] (a) mol-1Ls-1 (b) mol L-1s-1 (c) mol L-1 (d) mol kg -1 26. The temperature coefficient of most of the reaction lies between which of the following? [2023A,2022A] (a) 2and 3 (b) 1and 2 (c) 2 and 4 (d) 3 and 4 27. In the reaction CHCl3+ Cl2→CCl4+ HCl, rate = K[𝑪𝑯𝑪𝒍𝟑 ][𝑪𝒍]𝟏/𝟐 then order of reaction will be:- [2020A] 𝟏/𝟐 CHCl3+ Cl2→CCl4+ HCl = 𝑲[𝑪𝑯𝑪𝒍𝟑 ] [𝑪𝒍𝟐 ] 𝟑 (a) 1 (b) 2 (c) 𝟐 (d)0 28. If 75% of a first order reaction is completed in 32 minutes then the time required for 50% completion is:- [2022M] (a) 8 minutes (b) 24minutes (c) 16 minutes (d) 20minutes 29. If the rate of chemical reaction is expresses in the following manner :- Rate = 𝑲[𝑨]𝟐 [𝑩], then the order of this reaction would be:- [2022M, 2021M, 2015A,2013A] = 𝑲[𝑨]𝟐 [𝑩], (a) 2 (b) 3 (c) 1 (d) 0 30. Example of pseudo first order reactions is :- 64 CHEMISTRY POINT (SONU SIR)  𝑺𝒖𝒏𝒍𝒊𝒈𝒉𝒕 (a) H2 + Cl2 → 2HCl 𝑯+ (b) CH3COOC2H5 + H2O → CH3COOH + C2H5OH (c) 2NO + O2 → 2NO2 (d) H2 + Br2 → 2HBr 𝟑 𝟏 31. The order of reaction for rate expression 𝑲[𝑨]𝟐 [𝑩]𝟐 is :- 𝟑 𝟏 𝑲[𝑨]𝟐 [𝑩]𝟐 𝟏 𝟑 (a) 1 (b) 𝟐 (c) 𝟐 (d)2 𝟏 32. The reaction H2O2 →H2O + 𝟐 O2 is a :- 𝟏 H2O2 →H2O + 𝟐 O2 (a) Zero order (b) First order (c) Second order (d) Third order 33. Arrhenius equation is :- 𝑬𝒂 −𝑬𝒂 −𝑬𝒂 −𝑬𝒂 (a) K = A.e 𝑹𝑻 (b) K = A.e (c) K = e (d) K = 𝑹𝑻 𝑹𝑻 𝑹𝑻 34. For a zero order reaction :- [2017A] 𝟏 𝟏 (a) 𝒕𝟏 ∝ 𝒂 (b) 𝒕𝟏 ∝ 𝒂 (c) 𝒕𝟏 ∝ 𝒂𝟐 (d) 𝒕𝟏 ∝ 𝒂𝟐 𝟐 𝟐 𝟐 𝟐 35. The inversion of cane sugar to produce glucose and fructose is represented by the reaction. [2021M] 𝑯+ C12H22O11 + H2O → C6H12O6 + C6H12O6 the reaction is :- (a) Second order (f}rh; dksfV½ (b) Unimolecular (,dk.kqd½ (c) Pseudo first order (Nn~e izFke dksfV½ (d) None of these (buesa ls dksbZ ugha½ 𝟑 36. The rate of a chemical reaction is expressed as Rate = 𝐊[𝐀]𝟐 [𝑩]−𝟏. The order of reaction would be :- 𝟑 𝐊[𝐀]𝟐 [𝑩]−𝟏 [2021M] 𝟏 𝟑 (a) 2 (b) (c) 𝟐 (d) 1 𝟐 37. The minimum amount of energy required to convert reactants molecules into products is :- [2019A] (a) Kinetic energy (xfrt ÅtkZ½ (b) Potential energy (fLFkfrt ÅtkZ½ (c) Activation energy (lfØ;.k ÅtkZ (d) Kinetic energy + Potential energy. (xfrt ÅtkZ $ fLFkfrt ÅtkZ½ 38. In any reaction catalyst :- [2021A] (a) decreases the rate of reaction (vfHkfØ;k ds osx dks de djrk gS½ (b) increases the rate of reaction (vfHkfØ;k ds nj dks c