Matter is composed of

(a)

atoms

(b)

molecules

(c)

ions

(d)

all of the above

The Pictorial symbol for water given by the alchemists was

(a)

(b)

(c)

(d)

Symbol of Mercury is

(a)

Ag

(b)

Hg

(c)

Au

(d)

Pb

Which one of metal possess low tensile strength?

(a)

Silver

(b)

Copper

(c)

Zinc

(d)

Aluminium

The non-metal which conduct current is

(a)

carbon

(b)

oxygen

(c)

aluminium

(d)

sulphur

Molecule ______ D. smallest unit of a substance

(a)

1 - A, 2 - C, 3 - B, 4 - D

(b)

1 - C, 2 - A, 3 - B, 4 - D

(c)

1 - D, 2 - C, 3 - B, 4 - A

(d)

1 - B, 2 - C, 3 - A, 4 - D

The smallest particle of an element is__________

(a)

atom

(b)

molecule

(c)

Compound

(d)

element

Which of the following element is named after a scientist?

(a)

Americium

(b)

Mercury

(c)

Nobelium

(d)

Neptunium

Which of the following does not possess metallic lustre?

(a)

Copper

(b)

Calcium

(c)

aluminium

(d)

gold

The compound used for the sterilisation of drinking water is________

(a)

baking soda

(b)

washing soda

(c)

quick lime

(d)

bleaching powder.