Question

1. The given figure shows the set-up to study the reaction between gas X and copper (II) oxide :
Cuo
Gas X
N2(g)
heat
DO
water
water
Iceluu
Which of the following statements are correct?
[Given : Atomic mass of N = 14u, H = lu, 0 = 16u, C = 12u]
I) Gas X is a compound of two elements, nitrogen and hydrogen
II) The number of atoms present in 11.2 L of N, is 6.023 x 1023.
III) 1 mole of H,O contains 1 mole of oxygen molecules and 2 moles of hydrogen atoms.
IV) N, gas being soluble in water is collected by upward displacement of water.
a) I and II only b) I and III only c) II and IV only d) III and IV onl
Arrange the following in the order of increncin​

Answer 1

Answer:

Explanation:

3CuO

​

+2NH  

3

​

 

Δ

​

 

(Reddish Pink)

3Cu+N  

2

​

 

​

+3H  

2

​

O

The black colour copper oxide will change to reddish pink copper.

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