Question

Pick out the wrong statement.

a.

Dehydration of ammonium carbamate to produce urea is endothermic.

b.

Direct use of liquid ammonia as a fertiliser for a tropical country like India is suitable.

c.

Gypsum (CaSO₄. 2H₂O) is obtained as a by-product in the wet process for manufacture of ortho-phosphoric acid.

d.

Phosphate rock when reacted with dilute H₂SO₄ produces superphosphate.

Answer: (b).Direct use of liquid ammonia as a fertiliser for a tropical country like India is suitable.

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Q. Pick out the wrong statement.

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