Questions

Sir Benegal Narsing Rao (B N Rau), was the Constitutional Advisor to the Constituent Assembly. He was an Indian civil servant, jurist, diplomat and statesman known for his key role in drafting the Constitution of India.

He was also India's representative to the United Nations Security Council from 1950 to 1952.

Dull means not sharp, not shining, not bright, ...

Hence, the given words are all that means the opposite of dull.

Talc or talcum is a clay mineral composed of hydrated magnesium silicate with the chemical formula H2Mg3(SiO3)4 is the main ingredient in face powders that absorbs moisture and oil.

It is also called as French Chalk. Other ingredients include Calcium carbonate (chalk), Magnesium carbonate, China clay, starches like rice and potato, zinc oxide,...