1. Catalyst used in ammonia synthesis uses __________ as a promoter.
2. Commercial fertilisers are available mostly in the form of
3. Bio-fertilisers are cheaper, renewable and pollution free. They improve the __________ of the soil.
4. Hydrogen content of coke oven gas is __________ percent.
5. Vetrocoke solution is
6. In natural gas, the C/H ratio (by weight) varies in the range of
7. Out of the following, N2 content is minimum in
8. Superphosphate is manufactured by reacting phosphate rock with
9. Nitro-phosphate (manufactured at Trom-bay) is a __________ fertiliser.
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