Podcast
Questions and Answers
Which haloalkane listed has the highest boiling point?
Which haloalkane listed has the highest boiling point?
- Bromomethane
- 2-Bromobutane
- 2-Bromo-2-methylpropane (correct)
- 1-Bromobutane
Bromomethane has a higher boiling point than 1-Bromobutane.
Bromomethane has a higher boiling point than 1-Bromobutane.
False (B)
What is the half-life for the reaction if the initial concentration of R is $4.62 \times 10^{-2}$ mol/L and k = $2.31 \times 10^{-2}$ molL$^{-1}$s$^{-1}$?
What is the half-life for the reaction if the initial concentration of R is $4.62 \times 10^{-2}$ mol/L and k = $2.31 \times 10^{-2}$ molL$^{-1}$s$^{-1}$?
30 seconds
The product obtained when C6H5COOCOCH3 is treated with H2O is __________________.
The product obtained when C6H5COOCOCH3 is treated with H2O is __________________.
Match the symbols with their corresponding compositions:
Match the symbols with their corresponding compositions:
What is the result of ammonolysis of ethyl chloride followed by the reaction of the amine formed with 1 mole of methyl chloride?
What is the result of ammonolysis of ethyl chloride followed by the reaction of the amine formed with 1 mole of methyl chloride?
Which of the following compounds has the highest dipole moment?
Which of the following compounds has the highest dipole moment?
The actinoid with configuration [Rn] 5f 76d17s2 is Curium.
The actinoid with configuration [Rn] 5f 76d17s2 is Curium.
Match the properties with the correct metals:
Match the properties with the correct metals:
In the matching question, which pair corresponds to lanthanoid which shows +4 oxidation state?
In the matching question, which pair corresponds to lanthanoid which shows +4 oxidation state?
What is an important characteristic of bromoalkanes regarding their boiling points?
What is an important characteristic of bromoalkanes regarding their boiling points?
The lanthanoid with 4f14 electronic configuration in +3 oxidation state is ______.
The lanthanoid with 4f14 electronic configuration in +3 oxidation state is ______.
All bromoalkanes have the same boiling point regardless of their molecular structure.
All bromoalkanes have the same boiling point regardless of their molecular structure.
Flashcards
What type of amine is formed after ammonolysis of ethyl chloride followed by reaction with 1 mole of methyl chloride?
What type of amine is formed after ammonolysis of ethyl chloride followed by reaction with 1 mole of methyl chloride?
Ammonolysis is the reaction of an alkyl halide with ammonia, producing an amine. This reaction generates a primary amine (R-NH2) when 1 mole of methyl chloride reacts with the amine. This primary amine will form a soluble product with Hinsberg reagent. This indicates the amine is a primary amine.
Which of the following compounds has the highest dipole moment: CH3F, CH3Cl, CH3I or CH3Br?
Which of the following compounds has the highest dipole moment: CH3F, CH3Cl, CH3I or CH3Br?
The dipole moment of a molecule is determined by the electronegativity difference between the bonded elements and the molecular geometry. The higher the electronegativity difference, the larger the dipole moment. Among the given options, Fluorine is the most electronegative, thus CH3F has the highest dipole moment.
Match the following properties to the respective elements:
(i) Actinoid with configuration [Rn] 5f 76d17s2
(ii) Lanthanoid with 4f14 electronic configuration in +3 oxidation state
(iii) Lanthanoid which shows +4 Oxidation state
Match the following properties to the respective elements: (i) Actinoid with configuration [Rn] 5f 76d17s2 (ii) Lanthanoid with 4f14 electronic configuration in +3 oxidation state (iii) Lanthanoid which shows +4 Oxidation state
Curium (Cm) is an actinoid and has the electronic configuration [Rn] 5f 76d17s2. Lutetium (Lu) is a lanthanoid and has the electronic configuration 4f14 in its +3 oxidation state. Cerium (Ce) is a lanthanoid and exhibits a +4 oxidation state.
Explain the trend observed in the boiling points of bromoalkanes.
Explain the trend observed in the boiling points of bromoalkanes.
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Which haloalkane has the highest boiling point?
Which haloalkane has the highest boiling point?
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What is the half-life for the reaction R🡪P?
What is the half-life for the reaction R🡪P?
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What products are formed when C6H5COOCOCH3 is treated with H2O ?
What products are formed when C6H5COOCOCH3 is treated with H2O ?
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What are 'X' and 'Y' in the table?
What are 'X' and 'Y' in the table?
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Which compound contains only β-D-glucose as its monosaccharide unit?
Which compound contains only β-D-glucose as its monosaccharide unit?
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Study Notes
General Instructions
- The exam paper has 33 questions.
- Section A has 16 multiple choice questions, each worth 1 mark.
- Section B has 5 short answer questions, each worth 2 marks.
- Section C has 7 short answer questions, each worth 3 marks.
- Section D has 2 case study questions, each worth 4 marks.
- Section E has 3 long answer questions, each worth 5 marks.
- All questions are compulsory.
- Use of log tables and calculators is not allowed.
Section A - Multiple Choice Questions
- Question 1: Ammonolysis of ethyl chloride followed by reaction with methyl chloride produces an amine that reacts with Hinsberg reagent to produce a product insoluble in alkali.
- Question 2: CH3F has the highest dipole moment.
- Question 3: Match the properties given in Column I with the metals in Column II.
- Actinoid having configuration [Rn] 5f76d17s2 is Cerium (Ce).
- Lanthanoid with 4f14 electronic configuration in +3 oxidation state is Lutetium (Lu).
- Lanthanoid which shows +4 Oxidation state is Cm.
Section B - Short Answer Questions
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Question 17: Nitrogen gas solubility decreases with increasing temperature. Chloroform and acetone form an azeotrope with a 0.339 mole fraction of acetone, this azeotrope will boil at approximately 56°C.
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Question 18: A soda bottle will go flat faster in Srinagar than Delhi due to lower atmospheric pressure. Sugar in the product helps elevate the shelf life by hindering microbial growth.
- IUPAC name of K[Cr(H2O)2(C2O4)2]H2O is potassium diaquadioxalatochromate(III).
- Haemoglobin contains iron and vitamin B12 contains cobalt.
Section C - Short Answer Questions
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Question 19: The carriers of the current in the salt bridge are ions.
- Metal oxidation reaction at the anode is Mg → Mg²⁺ + 2e−.
- Mg/Mg²⁺ (cell)//Ag²⁺ (cell)/Ag (cell)
- cathode/anode is the order
- Cathode is where reduction occurs, anode is where oxidation occurs.
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Question 20: Complete the chemical reactions (two examples)
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Question 21: The carbonyl group in glucose is identified using hydroxylamine. The group is an aldehyde.
Section D - Case Study Questions
- Question 29: Prediction of reaction rates and orders, calculation of rate constants, effect of concentration change
- Question 30: Determining reaction mechanisms that align with experimental data. Discussion on the difference in the rate law of the mechanism
Section E - Long Answer Questions
- Question 31: Describing the behaviour of a purple colored compound A with H2SO4 in three test tubes.
- Question 32: Applying Valence Bond Theory to analyze a complex, predicting properties such as hybridization, geometry, magnetic behavior, calculating standard emf and solving given cases
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