CBSE Class 12 Chemistry Board Question Paper Solved 2018 Set 1

CBSE Class 12 Chemistry Board Question Paper Solved 2018 Set 1. 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. Analysis shows that FeO has a non-stoichiometric composition with formula Fe_0·95O. Give reason.

2. 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 ?

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

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

5. Write the IUPAC name of the following:-

6. Calculate the freezing point of a solution containing 60 g of glucose

(Molar mass = 180 g mol^–1) in 250 g of water.

(K_f of water = 1·86 K kg mol^–1)

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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