AP Inter 2nd Year Chemistry Question Paper April 2023

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AP Inter 2nd Year Chemistry Question Paper April 2023

Note : Read the following instructions carefully.

1. Answer all questions of Section – ‘A’. Answer any six questions in Section – ‘B’ and any two questions in Section – ‘C’.
2. In Section – A, questions from Sr. Nos. 1 to 10 are of “Very Short Answer Type”. Each question carries two marks. Every answer may be limited to 2 or 3 sentences. Answer all these questions at one place in the same order.
3. In Section -”’8′, questions from Sr. Nos. 11 to 18 are of “Short Answer Type”. Each question carries four marks. Every answer may be limited to 75 words.
4. In Section – ‘C’, questions from Sr. Nos. 19 to 21 are of “Long Answer Type”. Each question carries eight marks. Every answer may be limited to 300 words.
5. Draw labelled diagrams wherever necessary for questions in Section – ‘B’ and ‘C’.

Section – A

Note : Answer all the questions.

Question 1.
What is cryoscopic constant?

Question 2.
What are pseudo first order reactions? Give one example.

Question 3.
What is the role of cryolite in the metallurgy of aluminium?

Question 4.
Whaf happens when white phosphorus is heated with con-centrated NaOH solution in an inert atmosphere of CO₂?

Question 5.
SO₂ can be used as an antichjor. Explain.

Question 6.
Why Zn²⁺ is diamagnetic where as Mn²⁺ is paramagnetic?

Question 7.
What is Ziegler-Natta catalyst?

Question 8.
What is PHBV? How is it useful to man?

Question 9.
What are artificial sweetening agents? Give example.

Question 10.
What is the difference between a soap and a synthetic detergent?

Section – B

Note : Answer any SIX questions.

Question 11.
Derive Bragg’s equation.

Question 12.
Vapour pressure of water at 293 K is ,17.535 mm Hg. Calculate the vapour pressure of the solution at 293 K when 25 g of glucose is dissolved in 450 g of water.

Question 13.
What is catalysis? How is catalysis classified? Give two examples for each type of catalysis.

Question 14.
Explain the purification of sulphide are by froth flotation method.

Question 15.
Explain the structures of (a) XeFg and (b) XeOF₄.

Question 16.
Explain Werner’s theory of co-ordination compounds with suitable examples.

Question 17.
What are hormones? Give one example for each.
a) Steroid hormones
b) Polypeptide hormones
c) Amino acid derivatives.

Question 18.
a) What are ambident nucleophiles?
b) What are enantiomers?

Section – C

Note: Answer any TWO questions.

Question 19.
a) State and explain Kohlrausch’s law of independent migration of ions.
b) What is molecularity of a reaction ? How is it different from the order of a raction ? Name one bimolecular and one trimolecular gaseous reactions.

Question 20.
a) How does ozone react with the following :
(i) Pbs
(ii) K1
(iii) Hg
(iv) Ag
b) Write balanced equations for the following:
(a) NaCl is heated with concentrated H2S04 in the pres-ence of MnOz.
(b) Chlorine is passed into a solution of Nal in water.

Question 21.
Describe the following:
a) Kolbe reaction
b) Aldol condensation
c) Carbyl amine reaction
d) Williamson synthesis.