In which of the following setups would the bulb glow?
(A) i and ii
(B) i and iv
(C) ii, iii and iv
(D) i, ii and iv
Answer -
Acids and Bases , when dissolved in water, conducts electricity … because it forms ions.
From our options
- For (i) - Since HCl is acidic, it forms ions in water. Thus, it conducts electricity.
- For (ii) - Alcohol does not form ions in water. Thus, it does not conduct electricity.
- For (ii) - Alcohol does not form ions in water. Thus, it does not conduct electricity.
- For (iv) - Since Lime Water (Ca(OH) 2 ) is basic, it forms ions in water. Thus, it conducts electricity.
Thus, (i) and (iv) are correct
So, the correct answer is (b)