Question

please answer!!! Both the question ​

Answer 1

Answer:

Question (8)

a). oxides of metals are alkaline in nature.

True ..

reason :- oxides of metals ( metallic oxides) are basic or alkaline in nature because they react with diluted acid and gives salt and water

b) salt is acidic

false ..

reason :- salts are ionic compounds and form neutralisation reaction and gives acid and base it means salts is neutral

c) metal corrodes duo to salts

True

reason :- salts is a very good conductor it has lots of dissociation ions .

d) salts are neutral

True

reason :- salts are ionic compounds and form neutralisation reaction and gives acid and base it means salts is neutral

Question (9)

(1) acidic group compounds :-

Hcl , H2SO4 , HNO3 , H2O

(2) basic group compounds:-

Na2CO3 , CaO , H2O , MgO

H2O acts as acid and base ..

(3) neural group compounds :-

water can be neutral , neural water is used for the base ..

+> Nacl and kcl is salts which are obtained by the hydrochloric acid (HCl)

This is your answer..