Question

formula and valency of hydride and chlorate

Answer 1

Answer:

formula of chlorate is :ClO3

and formula of hydride is :H-

Explanation:

valency of chlorate is:1

and valency of hydride is also 1

Answer 2

Formula and valency of hydride:

Formula of the hydride of carbon is CH4. Number of valence electrons in boron is 3, so its valency is 3 and valency of carbon is 4 (have 4 valence electrons). As valency of hydrogen is 1, so formula of hydride of B and C areBH3 andCH4 respectively.

Formula and valency of chlorate:

If we consider the chlorate radical *ClO-3*, it has a charge —3 on it which gives it the capacity to form ionic compound of formula M3Cr2O7 with M have charge +1. Valency is the combining capacity of a group and is equal to the mod of the charge on the group. Therefore the valency must be equal to 3.