CBSE Class 12 Chemistry Question Paper Solved 2019 Set H

CBSE Class 12 Chemistry Question Paper Solved 2019 Set H. Students can download the last year board exams question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.

SECTION A

1. Write the IUPAC name of the following compound :

2. Arrange the following in increasing order of their acidic character :

Benzoic acid, Phenol, Cresol

3. Write IUPAC name of the complex [Co(en)₂(H₂O)(CN)]^2+.

OR

Using IUPAC norms, write the formula of Ammonium tetrafluoridocobaltate(II).

4. What is the difference between a glycosidic linkage and a peptide linkage ?

OR

What is the difference between Nucleotide and Nucleoside ?

5. Why is chloroform kept in dark coloured bottles ?

SECTION B

6. What happens when AgCl is doped with CdCl₂ ? What is the name of this defect ?

OR

What type of defect is shown by NaCl in

(a) stoichiometric defects, and

(b) non-stoichiometric defects ?

7. (a) Out of 0·1 molal aqueous solution of glucose and 0·1 molal aqueous solution of KCl, which one will have higher boiling point and why ?

(b) Predict whether van’t Hoff factor, (i) is less than one or greater than one in the following :

(i) CH₃COOH dissolved in water

(ii) CH₃COOH dissolved in benzene

8. Complete and balance the following equations :

(a) C + H₂SO₄ (conc.) ——→

(b) XeF₂ + PF₅ ——→

OR

Write balanced chemical equations involved in the following reactions :

(a) Fluorine gas reacts with water.

(b) Phosphine gas is absorbed in copper sulphate solution.

9. Draw structures of the following :

(a) H₂S₂O₇ 

(b) HClO₃ 

Please click the link below to download pdf file of CBSE Class 12 Chemistry Question Paper Solved 2019 Set H.