Question

Que-1 Which of the following is compound?

(a) Graphite (b) Steam (c) Milk (d) 22 carat gold.


Que-2 The total number of hydrogen atom in 8.5 g of NH3 is :

(a) 9.33 X 1023

(b) 3.01 X 1023

(c) 1.204 X 1023

(d) 6.02 X 1023



Que-3 H2O is the example of

(a) Element (b) Compound (c) Homogeneous mixture (d) Heterogeneous mixture


Que-4 One mole of H2SO4 is equal to……

(a) 98 g (b) 6.022 X 1023 atom (c) both a &b (d) none of these


Que-5 Which of the following contains more molecules?

(a) 1 g CO2 (b) 1 g N2 (c) 1 g H2 (d) 1 g CH4


Que-6 The number of molecule in 16 g of methane is :

a) 6.022 X 1023

b) 3.022 X 1023

c) 6.022 X 1022
d) 3.022 X 1022



Que- 7 What is Empirical formula of Glucose?

a) CH2O b) C6H12O6 c) C12H22O11 d) C2H2O2


Que-8 Neutrons are present in all atoms except :

a) He b) C c) H d) Ne​

Answer 1

Answer:

Que 1 : Graphite

Que 2: 1.204 *1023

Que 3 : Compound

Que 4 : 98g

Que 5 : 1g H2

Que 6 : 6.02* 1023

Que 7 : C6H12O6

Que 8 : H

Explanation:

Hope this helps

Answer 2

Answer:

3.011×1023,1 g H2,6.022×1023,H