Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

A white solid is either Na base 2O or Na base 2O base 2. A pice of red litmus paper turns white when it is dipped into a freshly made aqueous solution of the white solid. (i) Identify the substance and explain with balanced equation. (ii) Explain what would happen to the red litmus if the white solid were the other compound.

A white solid is either Na base 2O or Na base 2O base 2. A pice of red litmus paper turns white when it is dipped into a freshly made aqueous solution of the white solid.
(i) Identify the substance and explain with balanced equation.
(ii) Explain what would happen to the red litmus if the white solid were the other compound.

Grade:12th pass

1 Answers

Kevin Nash
askIITians Faculty 332 Points
6 years ago

(i) The substance is Na base 2O base 2. When dissolved in water, the solution becomes alkaline with the liberation of H base 2O base 2 Na base 2O base 2 + 2H base 2O ? 2NaOH + H base 2O base 2

NOTE : Due to the alkaline solution, the red litmus paper will turn into blue, which subsequently changes into white due to oxidation caused by H base 2O base 2.

(ii) The substance Na base 2O merely produces alkaline solution and thus the red litmus paper will turn into blue.

Na base 2 + H base 2O ? 2NaOH

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free