CHEMISTRY QUIZ

Helium gas is used in gas balloons instead of hydrogen gas because it is

More stable

More abundant than hydrogen

Lighter than hydrogen

Non-combustible

TRUE ANSWER : ?
YOUR ANSWER : ?

The advantage of detergents over soaps is

Detergents could not give much lather

Detergents are soluble in water

Detergents give lather even with hard water

Soaps give lather with only soft water

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following fuels causes minimum environmental pollution?

Kerosene

Hydrogen

Coal

Diesel

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs?

Methane

Nitrogen

Helium

Hydrogen

TRUE ANSWER : ?
YOUR ANSWER : ?

Bee sting contains

A salt solution

An acidic liquid

An alkaline liquid

A corrosive liquid

TRUE ANSWER : ?
YOUR ANSWER : ?

Aerated water contains

H2

SO2

CO2

NO2

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one of the following was used as a chemical weapon in the first world war ?

Mustard gas

Carbon monoxide

Water gas

Hydrogen cyanide

TRUE ANSWER : ?
YOUR ANSWER : ?

The gas that usually causes explosions in coal mines is

Carbon monoxide

Air

Methane

Hydrogen

TRUE ANSWER : ?
YOUR ANSWER : ?

In organic compounds, nitrogen is estimated by

Liebig's method

Dumas method

Victor-Meyer's method

Carius method

TRUE ANSWER : ?
YOUR ANSWER : ?

Among the following, which is always found in free-state in nature?

Copper

Gold

Sodium

Silver

TRUE ANSWER : ?
YOUR ANSWER : ?

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