Match the Following Column - I with Column – II Column – I Column – II I) Calcium hypochlorite A) Used as air purifier in submarines II) Calcium sulphate hemihydrate B) Used for water softening III) Potssium superoxide C) Constituent of bleaching powder IV) Calcium hydroxide D) Plaster of paris

Correct Answer is : I - C , II - D , III - A , IV - B

I - D , II - C , III - A , IV - B

I - C , II - D , III - A , IV - B

I - C , II - D , III - B , IV - A

I - D , II - C , III - B , IV - C

JEE Mains 2020 Model Paper 2 New Pattern

Question : 65 of 75

Marks: +1, -0

Match the Following Column - I with Column – II

Column – I	Column – II
I) Calcium hypochlorite	A) Used as air purifier in submarines
II) Calcium sulphate hemihydrate	B) Used for water softening
III) Potssium superoxide	C) Constituent of bleaching powder
IV) Calcium hydroxide	D) Plaster of paris

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