ISC 2022 Chemistry - Specimen paper (Semester 2), Paper 1 with Answers
All 19 questions of the ISC 2022 Chemistry - Specimen paper (Semester 2), Paper 1, in printed order. Open a question to read it in full and see its answer.
- Q1 Fill in the blanks by choosing the appropriate word(s) from those given in the brackets: (two, four, $\text{sec}^{-1}$… 3 marks · Fill in
- Q2(i) The type of hybridization involved in Octahedral complexes is: 1 mark · MCQ
- Q2(ii) One mole of a symmetrical alkene on ozonolysis gives two moles of an aldehyde having a molecular mass of $44\text{ amu}$. The… 1 mark · MCQ
- Q2(iii) Primary amine when warmed with chloroform and alc. $\text{KOH}$ yields: 1 mark · MCQ
- Q2(iv) The conversion of fresh precipitate to colloidal state is called peptization. 1 mark · Assertion-reason
- Q3 Name the type of isomerism shown by each of the following pairs of compounds… 2 marks · Short answer
- Q4(i) Write chemical equations to illustrate each of the following name reactions: Rosenmund’s reduction Clemmensen’s reduction 2 marks · Short answer
- Q4(ii) How will you bring about the following conversions? (Give equation). Acetic acid to acetone Formaldehyde to urotropine 2 marks · Short answer
- Q5 What is a zwitter ion? Represent the zwitter ion of glycine. 2 marks · Short answer
- Q6 Arrange the following in the increasing order of their basic strength: $\text{C}_2\text{H}_5\text{NH}_2$… 2 marks · Short answer
- Q7 Give reasons for the following: Diabetic patients are advised to take artificial sweeteners instead of natural sweeteners. The… 2 marks · Short answer
- Q8 The rate of reaction becomes four times when the temperature changes from $293\text{ K}$ to $313\text{ K}$. Calculate the energy… 2 marks · Numerical
- Q9 Give balanced equation for each of the following: Ethylamine and nitrous acid Aniline and acetyl chloride 2 marks · Short answer
- Q10 Give one chemical test for each to distinguish between the following pairs of compound: Acetaldehyde and benzaldehyde Acetone and… 2 marks · Short answer
- Q11(i) Answer the following: Define molecularity of a reaction. Give one difference between the order of reaction and its molecularity… 3 marks · Short answer
- Q11(ii) Answer the following: For a first order reaction, show that the time required for the completion of $99\%$ reaction is twice the… 3 marks · Short answer
- Q12 What is the basic difference between the electronic configuration of transition and inner transition elements? Why are… 3 marks · Short answer
- Q13 Write the formula of each of the following compounds: (a) Potassium trioxalatoaluminate (III) (b) Triammine triaquachromium (III)… 3 marks · Short answer
- Q14 Give reason for each of the following: For ferric hydroxide sol, the coagulating power of phosphate ion is more than chloride… 3 marks · Short answer