Question

I. Choose and write the correct answer for each of the

following:- 7x1=7

1.The atom is indivisible was proposed by

___________________.

a)Einstein b)Dalton c) Proust

2.Numerical value of Avogadro’s number is

__________________.

a) 6.022 x 1023 b)6.022 x 1015 c) 6.022x 1020

3.Latin name for iron is _____________ .

a) Ferrous b)Ferrum c)Ferric

4.The Valency of Al with atomic number 13 is

________________.

a)2 b) 3 c) 4

5.What is the chemical formulae of sodium oxide

_______________.

a) Na2o b)Alcl3 c)Na2S

6.Which of the following correctly represent the electronic

distribution in the Mg atom?

a) 3, 8, 1 b) 2, 8, 2 c)2, 8, 3

7. The atomicity of ozone is _____________.

a)4 b)3 c)2​

Answer 1

Answer:

1.  DALTON

2.6.022 x 1023

3.ferrum

4.2

5.Na2o

6.2, 8, 2

7.3

HOPE IT HELPS

TQ........./////////

all answers are correct

Explanation: