Question

An alloy of which pair of metals is liquid at ordinary temperature and is used in special thermometers used for finding temperature above the boiling point of mercury.

Solution

Correct option is

Na and K

An alloy of Na and K is liquid at ordinary temperature and is used in special thermometers used for finding temperature above boiling point of mercury.

SIMILAR QUESTIONS

Q1

Which of the following on thermal decomposition yields a basic as well as an acidic oxide?

Q2

 

Choose the correct statement :

The reason for use of polyphosphates as water softening agents is, that

Q3

Lithium can not be stored in kerosene oil because

Q4

Which one out of the NaOH and KOH, is a better absorber of CO2?

Q5

 

Which product is formed in the following reaction

 

Q6

 

The general formula of an alum is 

where M is univalent and M’ is a trivalent metal which of the following does not form alum?

Q7

Which of the following is a neither deliquescent nor efflorescent and is used for wool washing?

Q8

Which of the following is commercially known as oxone?

Q9

Which of the following is called black ash?

Q10

Which of the following compounds is used in preparation of green fire?