Choose the correct alternative from the following : - Assertion (A) : Clothes are not washed properly in hard water.
Reason (R) : Hard water contains many minerals.

B. BOTH A AND R ARE TRUE BUT R IS NOT THE CORRECT EXPLANATION OF A.

Choose the correct alternative from the following : - Assertion (A) : Silver is not used to make electric wires.
Reason (R) : Silver is a bad conductor.

C. A IS TRUE BUT R IS FALSE.

Choose the correct alternative from the following : - Assertion (A) : DDT has nowadays lost its use as an insecticide.
Reason (R) : DDT is harmful to man.

B. BOTH A AND R ARE TRUE BUT R IS NOT THE CORRECT EXPLANATION OF A.

Choose the correct alternative from the following : - Assertion (A) : Leakages in household gas cylinders can be detected.
Reason (R) : LPG has a strong smell.

C. A IS TRUE BUT R IS FALSE.

Choose the correct alternative from the following : - Assertion (A) : Amoebiasis is an occupational disease.
Reason (R) : Amoebiasis is caused by inhalation of asbestos dust.

E. BOTH A AND R ARE FALSE