Cyanamide

Q.

Which one of the following fertilizers is known as Kisan Khad?

1. Urea

2. Calcium Ammonium Nitrate

3. None of these

4. Ammonium Sulfate

Q.

Which of the following are used as fertilizers?

1. $N{H}_{4}N{O}_3$

2. $C{a}_3(P{O}_4{)}_3$

3. $Ca(H_{2}P{O}_4{)}_2$

4. $CaNCN$

Q. A mixture of calcium cyanamide and carbon is known as:

1. nitrolim
2. oleum
3. hydronium
4. none of these

Q. Calcium Cyanamide - CaNCN, which is produced by the Nitrogen fixation reaction of heating $Ca{C}_2$ and $N_2$ is black in colour – True or False?

1. False
2. True

Q. What are the reactants used in the manufacturing of superphosphate?

1. $H_{2}O$
2. All of the above
3. $C{a}_3(P{O}_4{)}_2$
4. $H_{2}S{O}_4$