Podcast
Questions and Answers
Which haloalkane listed has the highest boiling point?
Which haloalkane listed has the highest boiling point?
Bromomethane has a higher boiling point than 1-Bromobutane.
Bromomethane has a higher boiling point than 1-Bromobutane.
False
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 __________________.
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Match the symbols with their corresponding compositions:
Match the symbols with their corresponding compositions:
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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?
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Which of the following compounds has the highest dipole moment?
Which of the following compounds has the highest dipole moment?
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The actinoid with configuration [Rn] 5f 76d17s2 is Curium.
The actinoid with configuration [Rn] 5f 76d17s2 is Curium.
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Match the properties with the correct metals:
Match the properties with the correct metals:
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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?
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What is an important characteristic of bromoalkanes regarding their boiling points?
What is an important characteristic of bromoalkanes regarding their boiling points?
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The lanthanoid with 4f14 electronic configuration in +3 oxidation state is ______.
The lanthanoid with 4f14 electronic configuration in +3 oxidation state is ______.
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All bromoalkanes have the same boiling point regardless of their molecular structure.
All bromoalkanes have the same boiling point regardless of their molecular structure.
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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.
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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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Description
This quiz consists of 33 questions divided into multiple sections, including multiple choice, short answers, case studies, and long answers. It covers various concepts in chemistry, including amines and the properties of metals. All questions are compulsory, and the use of calculators is not permitted.
