Question : In an oxygen molecule, two atoms are united by

Option 1: one bond

Option 2: two bonds

Option 3: three bonds

Option 4: four bonds

Question : Which among the following gases is also known as ‘Laughing Gas’?

Option 1: Sulphur dioxide

Option 2: Nitrogen oxide

Option 3: Carbon dioxide

Option 4: Carbon monoxide

Question : Which of the following statements is not correct regarding hydrocarbons?

Option 1: Saturated hydrocarbons are unreactive and are inert in the presence of most reagents.

Option 2: Most carbon compounds also release the amount of heat and light on burning.

Option 3: Carbon compounds cannot get oxidised on combustion.

Option 4: Unsaturated hydrocarbons add hydrogen in the presence of catalysts such as palladium or nickel to give saturated hydrocarbons.

Question : The collections of Vedic hymns or mantras are known as ______.

Option 1: Samhita

Option 2: Vidatha

Option 3: Jnati

Option 4: Bali

Question : ___________ is/are known as the powerhouse of the cell.

Option 1: Nucleus

Option 2: Endoplasmic reticulum

Option 3: Cytoplasm

Option 4: Mitochondria