CHEMISTRY QUIZ

German silver used for making utensils is an alloy of

Copper, zinc, nickel

Copper, silver, nickel

Copper, nickel, aluminium

Copper, zinc, aluminium

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following produces highest amount of energy upon oxidation?

Protein

Fat

An alkane

Glucose

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one is a soluble salt in H2O

PbCl2

CuS

Zn(OH)2

CaCl2

TRUE ANSWER : ?
YOUR ANSWER : ?

The common name for the compound having formal NaOH is

Soda ash

Sodium hydroxide

Caustic potash

Caustic soda

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one of the following elements is used in the manufacture of fertilizers ?

Potassium

Lead

Aluminium

Fluorine

TRUE ANSWER : ?
YOUR ANSWER : ?

In an oxygen molecule, two atoms are united by

One bond

Three bonds

Four bonds

Two bonds

TRUE ANSWER : ?
YOUR ANSWER : ?

The name of unreactive gas is

Nitrogen

Hydrogen

Carbon dioxide

Oxygen

TRUE ANSWER : ?
YOUR ANSWER : ?

Chernobyl disaster is the result of pollution by

Acid rain

Carbon dioxide

Oil spill

Radioactive waste

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one of the following is a greenhouse gas ?

Carbon dioxide

Helium

Sulphur dioxide

Nitrogen

TRUE ANSWER : ?
YOUR ANSWER : ?

Spontaneous change is one in there is:

Increase in free energy

A lowering of free energy

A lowering of entropy

An increase in Internal energy

TRUE ANSWER : ?
YOUR ANSWER : ?

↑