CBSE Class 12 Chemistry Board Question Paper Solved 2018 Set 2

CBSE Class 12 Chemistry Board Question Paper Solved 2018 Set 2. Students can download the last year 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.

 CHEMISTRY

1. Write the IUPAC name of the following:-

2. Out of chlorobenzene and benzyl chloride, which one gets easily hydrolysed by aqueous NaOH and why ?

3. CO (g) and H₂ (g) react to give different products in the presence of different catalysts. Which ability of the catalyst is shown by these reactions ?

4. Write the coordination number and oxidation state of Platinum in the complex [Pt(en₎₂Cl₂].

5. Analysis shows that FeO has a non-stoichiometric composition with formula Fe_0·95O. Give reason.

6.How do you convert the following ?

(a) Ethanal to Propanone

(b) Toluene to Benzoic acid

OR

Account for the following :

(a) Aromatic carboxylic acids do not undergo Friedel-Crafts reaction.

(b) _pK_a value of 4-nitrobenzoic acid is lower than that of benzoic acid.

7. Among the hydrides of Group-15 elements, which have the

(a) lowest boiling point ?

(b) maximum basic character ?

(c) highest bond angle ?

(d) maximum reducing character ? 

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