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Question

A student prepared 20% sodium hydroxide solution in a beaker containing water. The observations noted by him are given below

(I) Sodium hydroxide is in the form of pellets.

(II) It dissolves in water readily.

(III) The beaker appears cold when touched from outside.

(iv)  The red litmus paper turns blue when dipped into the solution


  1. I, II and III

  2. II, III and IV

  3. I, II and IV

  4. III, IV and I


Solution

The correct option is C

I, II and IV


Sodium hydroxide is in the form of pallets and it readily dissolves in water to form a solution. As it is basic in nature, it turns red litmus paper blue

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