Reaction with Metals

Q. How many moles of nitrogen are required to produce 8.2 mol of ammonia on a reaction with an excess of hydrogen?

1. 4.1
2. 8.2
3. 2.4
4. 3.2

Q. Some covalent compounds dissolve in water due to

1. hydrogen bonding
2. dispersion forces
3. dipole-dipole forces

Q. In the given scheme of reactions, 10 moles of A is taken, while reagent B, E and H are taken in excess. Find the moles of G formed.
$\begin{array}{cc}\text{Reaction}& \text{Yield of reaction}\\ \text{(i)}2A+B\to 3C+D& 20\%\\ \text{(ii)}2C+E\to 4F& 40\%\\ \text{(iii)}7H+3F\to 8G& 50\%\end{array}$

1. 1.4 mol
2. 3.2 mol
3. 2.8 mol
4. 8.4 mol

Q.

Alkyl halides react with dialkyl copper reagents to give:

1. Alkenes

2. Alkyl copper halides

3. Alkanes

4. Alkenyl halides

Q. Arenium ion formed during the nitration of benzene is stabilised by hyperconjugation.

1. True
2. False

Q. A mixture of two organic chlorine compounds was treated with sodium metal in ether solution. Isobutane was obtained as a product. The two chlorine compounds are

1. Methyl chloride and propyl chloride
2. Methyl chloride and ethyl chloride
3. Isopropyl chloride and methyl chloride
4. Isopropyl chloride and ethyl chloride

Q. Which metal is used in Wurtz synthesis

1. Ba
2. Al
3. Na
4. Fe