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If 1 ml of water contains 20 drops. Then...

If 1 ml of water contains 20 drops. Then no. of molecules in a drop of water is

A

`6.022 xx 10^(23)` molecules

B

`1.376 xx 10^(26)` molecules

C

`1.344 xx 10^(18)` molecules

D

`4.346 xx 10^(20)` molecules

Text Solution

Verified by Experts

The correct Answer is:
C
22400mL of water contains = `6.022 xx 10^(23)` molecules
1mL of water contains ` = (6.022 xx 10^(23))/(22400)` molecules
= 20 drops
`therefore ` 1 drop of water will contain ` = (6.022 xx 10^(23))/(224 xx 2 xx 10^(3))`
` = 1.344 xx 10^(18)` molecules
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