Question

11. Which element has smallest size?
(a) B
(6) F
(c) Al
(d) CI
12. Which of the following molecule has highest bond angle ?
(a) H20
(b) NH3
(c) CO₂
(d) CHE
13. Neutrons are present in all atoms except:
(a) He
(b) C
(6) H
(d) Ne
14. Which of the following has maximum number of atoms?
(a) 18 g of water
(b) 16 g of Oz
(c) 4.4 g of CO2
(d) 16 g of CH4
15. At high altitudes, the boiling point of water gets lowered because :
(a) temperature is low
(b) atmospheric pressure is low
(c) atmospheric pressure is high (d) none of these​

Answer 1

Answer:

11)b

12)c

13)c)H

14)a

15)c

Answer 2

Answer:

11) b

12) c

13) c

14) a

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