Question

(c) NaC1o
(4) NICIO
18. Complete the following statements by selecting the
correct option
(a) The formula of a compound represents
(i) an atom
m) a particle
(ui) a molecule (iv) a combination
(b) The correct formula of aluminium onunde is
(1) AIO,
m) AIO
ALLO
(c) The valency of nitrogen in mitrogen donde (NO)
(i) one
in two
(iv) four
(ii) three​

Answer 1

Answer:

question(c) answer

Explanation:

let the valency of nitrogen in be x. 

           valency of oxygen = −2

          For NO2 it will be ,

                                x+2×(−2)=0

                                 x=+4