EASY
NDA & NA EE
IMPORTANT
Earn 100

The permanent hardness of water is due to the presence of: 

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Important Questions on Elements and Compounds

EASY
NDA & NA EE
IMPORTANT
Chemistry Crash Course NDA & NA EE>Chapter 8 - Elements and Compounds>Exercise 1>Q 26
The bond which is present between water molecules is-
MEDIUM
NDA & NA EE
IMPORTANT
Chemistry Crash Course NDA & NA EE>Chapter 8 - Elements and Compounds>Exercise 1>Q 28
Which one of the following is correct?
MEDIUM
NDA & NA EE
IMPORTANT
Chemistry Crash Course NDA & NA EE>Chapter 8 - Elements and Compounds>Exercise 1>Q 29

Which of the following statements, in connection with the properties of water, is/are correct? 

I. Water has a higher specific heat in comparison with other liquids.

II. Water has no dipole moment.

III. Water has a low heat of vaporisation.

Select the correct answer using the codes given below.

MEDIUM
NDA & NA EE
IMPORTANT
Chemistry Crash Course NDA & NA EE>Chapter 8 - Elements and Compounds>Exercise 1>Q 30

Which one of the following statements, regarding the property of hard water, is/are correct? 

I. Temporary hardness of water is due to the presence of soluble magnesium and calcium hydrogen carbonate.

II. Temporary hardness of water can be removed by boiling.

III. Calgon's method is applied to remove the temporary hardness of water.

IV. Permanent hardness of water is removed by Clark's method.

Select the correct answer using the codes given below.