Question

6. A solid element is a non-metal, it can form [ ]

a) An acidic oxide b) A basic oxide c) A salt d) A metallic salt

7. The colour of phenolphthlein in acidic medium is [ ]

a) Red b) Yellow c) Colourless d) Pink

8. The colour of methyl orange in basic medium is [ ]

a) Yellow b) Red c) Pink d) Colourless

9. In neutral solutions litmus colour is [ ]

a) Red b) Purple c) Yellow d) Green

10. On dissolving bases in water produces ______ ions. [ ]

a) H+ b) OH–

c) H3O+ d) None​

Answer 1

Answer:

Explanation:

acidic oxide and neutral oxide

colourless

yellow

does not show any effect

oh-