Chemistry - Study Mode

[#716] Which one is not a primary greenhouse gases in the Earth's atmosphere?
Correct Answer

(C) Nitrogen

Explanation

Solution: Nitrogen is not a primary greenhouse gases in the Earth's atmosphere.

[#717] Which of the following is secondary air pollutant ?
Correct Answer

(D) SO 2

Explanation

Solution: SO 2 is secondary air pollutant.

[#718] Sullage water is –
Correct Answer

(A) Waste water released from kitchen

Explanation

Solution: Sullage is domestic wastewater other than that which comes from the toilet. It results from food preparation, personal washing, and washing of cooking and eating utensils and clothes. It is also called greywater (to distinguish it from blackwater which describes wastes containing human excrete).

[#719] The gas liberated in the Bhopal gas tragedy was:
Correct Answer

(D) Methyl isocynate

Explanation

Solution: The scenes were reminiscent of the 1984 Bhopal gas disaster which killed thousands of people. At least 30 tonnes of methyl isocyanate gas was released from the Union Carbide pesticide plant in the Madhya Pradesh capital in one of the worst industrial disasters of the 20th century.

[#720] Which of the following gases is present under pressure in soft drinks?
Correct Answer

(C) Carbon dioxide

Explanation

Solution: Carbon dioxide is present under pressure in soft drinks.