TS Inter 2nd Year Chemistry Question Paper May 2019

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TS Inter 2nd Year Chemistry Question Paper May 2019

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 relative lowering of vapour pressure.

Question 2.
What is galvanic cell? Give one example.

Question 3.
Give the composition of the following alloys :
(a) German silver
(b) Brass
(c) Bronze

Question 4.
State Henry’s Law.

Question 5.
What are the neutral oxides of nitrogen?

Question 6.
Why does NH3 act as a Lewis base?

Question 7.
Write the structure of XeF₄.

Question 8.
Write equation for carbylamine reaction.

Question 9.
What are analgesis ? How are they classified?

Question 10.
CuSO₄, 5HO is blue in colour where as unhydroes. CuSO₄ is colourless. Why?

Section – B

Note : Answer any six questions.

Question 11.
Derive Bragg’s equation.

Question 12.
Calculate the molarity of a solution containing 5g of sodium Hydroxide (NaOH) in 450 mZ. solution.

Question 13.
Name any four enzyme catalysed reations.

Question 14.
Explain the following with examples
(i) Calcination
(ii) Roasting.

Question 15.
How are XeF₂ and XeF₆ prepared? Write their structures.

Question 16.
Write the IUPAC names write the systematic name of the following.
i) [Fe(C₂O₄)₃]₄
ii) [Fe(CN⁶)]^-4
iii) [NiCl₄]^-2
iv) [CO(NH₃)₆]Cl₃

Question 17.
Write notes on Antiseptics and Autibiotics.

Question 18.
Explain S¹N and S²N reactions with an examples.

Section – C

Note : Answer any two questions.

Question 19.
How is ozone prepared from Oxygen? Explain its reaction with,
(i) KI
(ii) PbS
(iii) C₂H₄
(iv) Hg

Question 20.
How ammonia manufactured by Haber’s process?

Question 21.
Describe the following :
(i) Cannizaro reaction
(ii) Williamson’s ether synthenis
(iii) Acetylation
(iv) Decorboxylation