Question

1) The SI unit of density is ……..…..

a) N/2 b) Kg/3 c) g/cc d) Kg/3

2) Dry cell provides potential difference of ………. Volts.

a) 1.2 b) 105 c) 3 d) 4.5

3) Negatively charged particles inside the atom has mass 1800 times less than

atom………

a) Hydrogen b) Oxygen c) Chlorine d) Carbon

4) Discovery made by …….... pointed out that an atom has internal structure.

a) Dalton b) Thomson c) Rutherford d) Bohr

5) Mass number is denoted by symbol ……….

a) A b) Z c)X d) M​

Answer 1

Answer:

1) (c)

2) (a)

3) (a)

4) (d)

5) (a)

Answer 2

Answer:

SI unit of density is kg/m3.

2)A

3) A

4)D

5)A..........

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Explanation: