Question 1

The formula of Mohr's salt is

Accepted Answer

FeSO₄.(NH₄)₂SO₄.6H₂O

Answer

NH₄Fe(SO₄)₂.6H₂O

Answer

(NH₄)₂Fe(SO₄)₂.H₂O

Answer

FeSO₄.NH₄SO₄.6H₂O

Question 2

The molar mass of Mohr's salt is

Accepted Answer

392 g mol^-1

Answer

292 g mol^-1

Answer

382 g mol^-1

Answer

362 g mol^-1

Question 3

dil. sulphuric acid is added to the preparation of standard Mohr's salt solution is

Accepted Answer

to prevent hydrolysis of Mohr's salt

Answer

to make the solution neutral

Answer

to make the solution basic

Answer

to make the solution acidic

Question 4

The end point of this titration is

Accepted Answer

colourless to light permanent pink

Answer

colourless to orange

Answer

colourless to black

Answer

pink to orange

Question 5

The oxidising agent in this redox titration is

Accepted Answer

KMnO4

Answer

H2SO4

Answer

(NH₄)₂SO₄

Answer

Mohr's salt

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