Question

Hey There!
Chemistry question here. Answer with proper reasons.
Thankyou.​

Answer 1

Answer:

a) B

b) A2D

c) 2, covalent bond and one is sigma and other is pi bond

Explanation:

Element B form divalent cation because it have +2 valency

Answer 2

Answer:

Explanation:

a)B(Barium element which has a cation of charge +2)

b)k2o(pottasium oxide)

c) the element is nitrogen,it has 3bonds. there are covalent bonds present it this atom