Chemistry quiz

Which of the following is not a Nobel gas?

• Helium

• Xenon

• Radium

• Radon

Which of the following properties generally decrease along a period?

• Atomic size

• Non metallic character

• Metallic character

• Both atomic size and metallic character

The element with smallest size in the 4th period is

• Chlorine

• Iodine

• Fluorine

• Bromine

Element with which of the following atomic numbers will be non metallic in character?

• 12

• 20

• 13

• 15

Identify the combination reaction

• Hydrogen burns in air

• Electrolysis of water

• Digestion of food

• Addition of dilute sulphuric acid to barium chloride solution

Which one of the following types of medicines is used for indigestion?

• Antibiotics

• Antacids

• Analgesic

• Antiseptic

A solution turns red litmus blue, the pH is likely to be

• 1

• 4

• 5

• 10

The chemical name of limestone is

• Calcium oxide

• Calcium hydroxide

• Calcium bicarbonate

• Calcium carbonate

Alloys of which of the following metals are light and are used for making aeroplanes?

• Copper

• Tin

• Aluminium

• Zinc

Which of the following is the second most abundant metal in the Earth's crust?

• Copper

• Aluminium

• Iron

• Zinc