Podcast
Questions and Answers
Ammonolysis of ethyl chloride followed by reaction of the amine so formed with 1 mole of methyl chloride gives an amine that:
Ammonolysis of ethyl chloride followed by reaction of the amine so formed with 1 mole of methyl chloride gives an amine that:
Which one of the following alkyl halides has the highest dipole moment?
Which one of the following alkyl halides has the highest dipole moment?
Match the properties given in Column I with the metals in Column II:
Column I
(i) Actinoid having configuration [Rn] 5f 76d17s2
(ii) Lanthanoid which has 4f14 electronic configuration in +3 oxidation state.
(iii) Lanthanoid which shows +4 Oxidation state
Column II
(A) Ce
(B) Lu
(C) Cm
Match the properties given in Column I with the metals in Column II:
Column I (i) Actinoid having configuration [Rn] 5f 76d17s2 (ii) Lanthanoid which has 4f14 electronic configuration in +3 oxidation state. (iii) Lanthanoid which shows +4 Oxidation state
Column II (A) Ce (B) Lu (C) Cm
Considering only the provided graph of boiling points of bromoalkanes and assuming a linear relationship with increasing carbon number within each series (primary, secondary and tertiary), what is the most plausible explanation for the observed trend?
Considering only the provided graph of boiling points of bromoalkanes and assuming a linear relationship with increasing carbon number within each series (primary, secondary and tertiary), what is the most plausible explanation for the observed trend?
Signup and view all the answers
Considering haloalkanes, which of the following options correctly orders the compounds from lowest to highest boiling point?
Considering haloalkanes, which of the following options correctly orders the compounds from lowest to highest boiling point?
Signup and view all the answers
For the reaction $R \rightarrow P$, the initial concentration of R is $4.62 \times 10^{-2}$ mol/L, and the rate constant $k = 2.31 \times 10^{-2}$ mol L$^{-1}$s$^{-1}$. What is the half-life of this reaction?
For the reaction $R \rightarrow P$, the initial concentration of R is $4.62 \times 10^{-2}$ mol/L, and the rate constant $k = 2.31 \times 10^{-2}$ mol L$^{-1}$s$^{-1}$. What is the half-life of this reaction?
Signup and view all the answers
What products are obtained when $C_6H_5COOCOCH_3$ is treated with $H_2O$?
What products are obtained when $C_6H_5COOCOCH_3$ is treated with $H_2O$?
Signup and view all the answers
In the context of coordination compounds, if 'X' represents a coordination complex with the formula $[Co(NH_3)_4Cl_2]Cl$ and 'Y' represents the ratio of complex ions to counter ions, then which of the following options correctly identifies ‘X’ and ‘Y’?
In the context of coordination compounds, if 'X' represents a coordination complex with the formula $[Co(NH_3)_4Cl_2]Cl$ and 'Y' represents the ratio of complex ions to counter ions, then which of the following options correctly identifies ‘X’ and ‘Y’?
Signup and view all the answers
Which polysaccharide consists exclusively of $\beta$-D-glucose monosaccharide units?
Which polysaccharide consists exclusively of $\beta$-D-glucose monosaccharide units?
Signup and view all the answers
Flashcards
Haloalkanes and Boiling Points
Haloalkanes and Boiling Points
2-Bromo-2-methylpropane has the highest boiling point among the listed haloalkanes.
Half-Life Calculation
Half-Life Calculation
The half-life of a reaction can be calculated using the formula related to rate constant k.
Hydrolysis of Esters
Hydrolysis of Esters
C6H5COOCOCH3 with H2O yields Benzoic acid and ethanol.
β-D-Glucose in Polysaccharides
β-D-Glucose in Polysaccharides
Signup and view all the flashcards
Paramagnetic Properties of Ions
Paramagnetic Properties of Ions
Signup and view all the flashcards
Ammonolysis of ethyl chloride
Ammonolysis of ethyl chloride
Signup and view all the flashcards
Dipole moment
Dipole moment
Signup and view all the flashcards
Actinoid configuration
Actinoid configuration
Signup and view all the flashcards
Lanthanoid oxidation states
Lanthanoid oxidation states
Signup and view all the flashcards
Hinsberg reagent
Hinsberg reagent
Signup and view all the flashcards
Boiling points of bromoalkanes
Boiling points of bromoalkanes
Signup and view all the flashcards
Noble gas configurations
Noble gas configurations
Signup and view all the flashcards
Lanthanoid +4 oxidation state
Lanthanoid +4 oxidation state
Signup and view all the flashcards
Study Notes
General Instructions
- The exam paper has 33 questions.
- Some questions have internal choice.
- Section A has 16 multiple-choice questions (1 mark each)
- Section B has 5 short answer questions (2 marks each)
- Section C has 7 short answer questions (3 marks each)
- Section D has 2 case-based questions (4 marks each)
- Section E has 3 long answer questions (5 marks each)
- All questions are compulsory.
- Using log tables and calculators is not permitted.
Section A - Multiple Choice Questions
- Question 1: Ammonolysis of ethyl chloride followed by reaction with methyl chloride forms an amine that reacts with Hinsberg reagent to form a product that is insoluble in alkali.
- Question 2: CH3F has the highest dipole moment.
- Question 3: Matching properties with metals: (i) Actinoid [Rn]5f76d17s2 matches to Cerium (Ce), (ii) Lanthanoid 4f14 in +3 oxidation state corresponds to Lutetium (Lu), (iii) Lanthanoid showing +4 oxidation state matches to Californium (Cm).
Section B - Short Answer Questions (2 marks each)
- Question 17: Nitrogen gas solubility decreases at temperatures above 293 K if the Henry's constant increases. Chloroform and Acetone form an azeotrope with a mole fraction of 0.339 for acetone, and a boiling point of approximately 60 °C. The soda bottle will go flat faster in Srinagar than Delhi due to lower atmospheric pressure. Sugar increases product shelf life by inhibiting microbial growth.
- Question 18: IUPAC name: K[Cr(H2O)2(C2O4)2]H2O. Metal ion in hemoglobin is iron, in vitamin B-12 is cobalt.
Section C - Short Answer Questions (3 marks each)
- Question 22: Electrolysis of copper chloride on inert electrodes results in the formation of copper at the cathode and chlorine gas at the anode. Replacing concentrated copper sulphate with copper chloride would lead to chlorine gas production instead of oxygen.
Section D - Case-Based Questions (4 marks each)
- Question 29: Chemical reaction rate depends on reactant concentrations, temperature, and other factors. A mechanism is a series of elementary steps that lead to the overall reaction.
Section E - Long Answer Questions (5 marks each)
- Question 31: Purple compound used for bleaching is generally potassium permanganate.
- Question 32: (i) Isomerism type: Coordination isomerism is possible, and structural formula is required. (ii) Ionic equations: reaction of acidified K2Cr2O7 with H2S or FeSO4
- Question 33: In the HVZ reaction formic acid gives a positive test due to greater acidity while acetic acid does give the test but is weaker than formic acid. Alcohols are weaker acids than water with reactivity order: tert- > sec- > primary.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Prepare for your 10th class chemistry exam with this comprehensive quiz featuring multiple-choice, short answer, and long answer questions. Each section is designed to test your understanding of key chemical concepts and reactions. Make sure to tackle all questions to strengthen your knowledge!
