Question

Case study 5x1=5
Read the given lines, understand and answer the Assertion and Reasoning questions:

Coal is a combustible black or brownish black sedimentary rock. Coal is mostly carbon with variable amounts of other elements, chiefly hydrogen, Sulphur, oxygen and nitrogen. In Assertion (A) and Reasoning (R), two
statements are given
(0) Choose option (a) if A is correct and R is its correct explanation
(ii) Choose option (b) if A is correct and R is correct, but is not the correct explanation of A
(iii) Choose option © if A is correct and R is wrong.
(iv) Choose option (d), if A is wrong and R is correct, and
(v) Choose option € if both A and Rare wrong
1. A: Natural gas is a product of petroleum
R: Natural gas is stored under high pressure as CNG. 2. A: Fossil fuels are exhaustible resources.
R: Natural gas is a fossil fuel.
3. A: Coke is obtained from petroleum R: Coke is thick black liquid with an unpleasant smell.
4. A: Coal is formed by the process of carbonization.
R: Coal tar is a mixture of various substances,
5. A: Paraffin wax is obtained from petroleum.
R: It is used as a fuel in home and industry.​

Answer 1

Answer:

1) (iv)

2) (ii)

3) (ii)

4) (ii)

5) (iii)