Question

what is the correct ratio of bleaching powder and water is
A)1:200
B)2:400
C)3:400
D)4:400​

Answer 1

Answer:

A) 1:200

Explanation:

The correct ration of bleaching powder and water is 1:200

In 1 Litre of water, 5 mg of bleaching powder is dissolved.

We know that,

1 Litre = 1000 millilitre

5mg in 1000 mL

We have converted liters into milliliters to make units similar.

So, 5 mg in 100o mL

= 5/1000

= 0.005

The value of 1/200

= 0.005

So, the ratio is 1:200

Answer 2

The correct answer to the question is option (a) 1: 200

That is we can say, that the bleaching powder and the water is mixed in the ratio of 1: 200.

Explanation:

Let us see how it happens,

we also know that, 4-5 mgs of bleaching powder is added to 1 litre of water. In order to a form a solution that acts as a very good disinfectant.

1 litre = 1000 mg

So, the ratio will be = (Bleaching powder/ water ) = 5 / 1000

On solving this, we get the answer as - 1: 200