Tag: nitrogen and sulfur

Quizzes (10) Questions (295)

Questions Related to nitrogen and sulfur

Multiple choice chemistry nitrogen and sulfur ammonia-properties and uses ammonia compounds of nitrogen - ammonia

When Ammonical common salt solution is saturated with carbon dioxide we obtain ?

  1. $NH _4HCO _3$
  2. $(NH _4) _2CO _3$
  3. $NaHCO _3$
  4. $Na _2CO _3$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ammonical solution of common salt.

$CO _2+NH _3+NaCl+H _2O\longrightarrow NaHCO _3+NH _4Cl$
$\therefore$ By treating $CO _2$ with ammonical $NaCl$ we get sodium bicarbonate $(NaHCO _3)$ and ammonium sulphate.
Answer is option C.

Multiple choice chemistry nitrogen and sulfur ammonia-properties and uses ammonia compounds of nitrogen - ammonia

Chlorine reacts with excess of ammonia to form:

  1. ${ NH } _{ 4 }Cl$
  2. ${ N } _{ 2 }+HCl$
  3. ${ N } _{ 2 }+{ NH } _{ 4 }Cl$
  4. ${ N } _{ 2 }+{ HCl} _{ 3 }$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Pure chlorine gas may react vigorously with ammonia gas. An excessive mix of the two gases in the air can produce hazardous compounds such as the explosive nitrogen trichloride. In facilities that use chloramination, the pure chlorine and ammonia need to be stored in separate, sealed rooms or buildings.

When ammonia is excess,

$3 Cl _2 + 8 NH _3 \rightarrow 6 NH _4Cl + N _2 (g)$

Multiple choice chemistry nitrogen and sulfur ammonia-properties and uses ammonia compounds of nitrogen - ammonia

Ammonia, $NH _3$ and hydrazine, $NH _2NH _2$, are two compounds of nitrogen, $N _2$. Which statement is correct?

  1. The N-N bond in $NH _2NH _2$ is polar
  2. $NH _3$ and $NH _2NH _2$ have lone pairs of electrons but $N _2$ does not
  3. The oxidation number of each nitrogen in $NH _2NH _2$ is $+2$

  4. The reaction of nitrogen with hydrogen has a high activation energy
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Solution:- (D) The reaction of nitrogen with hydrogen has high activation energy.


The $N-N$ bond in $N{H} _{2} N{H} _{2}$ is a non-polar bond because $N$ and $N$ have the same electronegativity value.

${N} _{2}$ also has a lone pair of electron on each nitrogen atom.

The oxidation number of each hydrogen in $N{H} _{2}N{H} _{2}$ is $+1$, thus the oxidation number of each nitrogen in $N{H} _{2}N{H} _{2}$ is $-2$.

Due to high bond energy, the reaction of nitrogen with hydrogen has high activation energy.

Hence statement $\left( D \right)$ is correct.

Multiple choice chemistry nitrogen and sulfur ammonia-properties and uses ammonia compounds of nitrogen - ammonia

Gases: ammonia, chlorine, hydrogen chloride and sulphur dioxide 

Select the gas that matches the description given.

Statement : The gas turns moist red litmus paper blue.

  1. Chlorine

  2. Ammonia

  3. Sulphur dioxide

  4. Hydrogen chloride
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ammonia is basic in nature which turns red litmus paper to blue and confirms that ammonia is alkaline gas.

Multiple choice chemistry nitrogen and sulfur ammonia-properties and uses ammonia compounds of nitrogen - ammonia

Formation of ammonium sulphate from ammonia and dil sulphuric acid is given by :

  1. ${3NH } _{ 3 }+{ H } _{ 2 }{ SO } _{ 4 }\rightarrow { \left(2 { NH } _{ 4 } \right) } _{ 2 }{ SO } _{ 4 }$
  2. ${ 2NH } _{ 3 }+{ H } _{ 2 }{ SO } _{ 4 }\rightarrow { \left( { NH } _{ 4 } \right) } _{ 2 }{ SO } _{ 4 }$
  3. ${ 2NH } _{ 3 }+3{ H } _{ 2 }{ SO } _{ 4 }\rightarrow { \left( { NH } _{ 4 } \right) } _{ 2 }{ SO } _{ 4 }$
  4. ${ 2NH } _{ 3 }+2{ H } _{ 2 }{ SO } _{ 4 }\rightarrow { \left( { NH } _{ 4 } \right) } _{ 2 }{ SO } _{ 4 }$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

${ 2NH } _{ 3 }+{ H } _{ 2 }{ SO } _{ 4 }\rightarrow { \left( { NH } _{ 4 } \right)  } _{ 2 }{ SO } _{ 4 }$