Electrolysis is a process in which: MCQ with Answer and Explanation

Explanation:
The periodic table has 7 horizontal rows called periods. Elements in the same period have the same number of electron shells. Properties change gradually across a period. Groups are vertical columns (18), where elements have similar valence electron configurations and thus similar chemical properties. Families are informal group names (e.g., halogens). Blocks (s, p, d, f) are based on the orbital in which the last electron enters.

Explanation:
Muriate of potash (MOP) is KCl, providing potassium. Urea is nitrogenous; DAP provides N and P; superphosphate provides phosphorus. Potassic fertilizers improve plant disease resistance.

Explanation:
Baking powder is a mixture of sodium bicarbonate (baking soda) and a mild edible acid, usually tartaric acid. When moistened and heated, they react to release CO₂, causing dough to rise. Baking soda alone requires an external acidic ingredient. The acid ensures complete reaction and avoids a bitter taste.