How many bonding electronpairs are there in white phosphorus ?

Ammonia on reaction with hypochlorite anion can form :

Solution

N₂H₄ and NH₄Cl are obtained by reaction of ammonia with hypochlorite anion.

3NH₃ + NaOCl → N₂H₄NHCl + NaOH

Chlorine upon reaction with NaOH in cold yields:

Solution

\(2NaOH + Cl_{2} \overset{cold}{\rightarrow} NaCl + \underset{Sod. hypo-chlorite}{NaClO}+ H_{2}O\)

In Haber’s process for the manufacture of 3NH:

Solution

In Haber’s process for manufacture of NH₃, finely divided iron is used as catalyst and molybdenum is used as catalytic promoter

\(N_{2}(g)+3H_{2}(g) \begin{matrix} Fe + Mo{°}\\ \;----\rightarrow \\ 800K,HighP\end{matrix} 2NH(g)\)

NH₃ gas can be dried by?

NH₄ClO₄ + HNO₃(dil.) → HClO₄[X] [X]\(\overset{\Delta }{\rightarrow}\)Y(g)

[X] and [Y] are respectively –

Solution

NH₄ClO₄+ HNO₃ → HClO₄ + NH₄NO₃

NH₄NO₃ \(\overset{\Delta }{\rightarrow}\) N₂O + 2H₂O

The most efficient agent for the absorption of SO₃ is :

Nitrogen reacts with calcium and carbon to give –

Most acidic oxide among the following is –

Solution

Oxide in which central atom has higher charge and more electronegativity is more acidic, i.e. N₂O₅ > N₂O₄ > P₂O₅> As₂O₃.

Concentrated sulphuric acid is always diluted by adding

Solution

concentrated sulphuric acid is always diluted by adding acid to water because the process of mixing generates a lot of heat. If we add water to acid due to generation of large amount of heat acid may spill over to its surroundings.

UnAttempted

0

Attempted

Correct

Wrong