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

Ammonia gas on passing through copper sulphate solution gives:

  1. yellow colour solution

  2. blue colour solution

  3. brown colour solution

  4. red colour solution
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ammonia reacts with copper(II)ions to precipitate light blue copper hydroxide. Ammonia causes the copper ion to go back into the solution as a deep blue ammonia complex. The precipitate dissolves as we add an excess of ammonia.

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

Which of the following chemicals has caused disasters by exploding in the holds of ships in harbours and in warehouses?

  1. Vinegar in bottles under pressure

  2. Ammonium nitrate

  3. Gold chloride

  4. Caustic soda
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ammonium Nitrate caused an explosion at the Port of Texas City. A ship loaded with $NH _4NO _3$ docked at the Port erupted in flames.

Another ship also carrying $NH _4NO _3$ caught fire in the blast and exploded on the same day.

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

Which of the following compounds are formed by the reaction of ammonia with acids?

  1. Calcium ammonium nitrate

  2. Ammonium chloride

  3. Ammonium phosphate

  4. Ammonium sulphate
Reveal answer Fill a bubble to check yourself
A,B,C,D Correct answer
Explanation

$NH _3$ is a base and it forms salt with acids.
Ammonia reacts with Nitric acid to form ammonium nitrate and on further addition with Calcium carbonate it forms Calcium ammonium nitrate.

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

Identify the probable products for the reaction of $NH _{3}$ with $Cl _{2}$.

  1. $N _{2}$ and $NH _{4}Cl$
  2. $NCl _{3}$ and $HCl$
  3. $N _{2}$ and $NCl _{3}$
  4. $NH _{4}Cl$ and $HCl$
Reveal answer Fill a bubble to check yourself
A,B Correct answer
Explanation

If $NH _3$ is in excess then $8NH _3 + 3Cl _2 \rightarrow 6NH _4Cl + N _2$
If $Cl _2$ is in excess then $NH _3 + 3Cl _2 \rightarrow NCl _3 + 3HCl$

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

In Ammonia-Boron trifluoride complex, the donor molecule is Ammonia.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In Ammonia-Boron trifluoride complex ($H _3N \rightarrow BF _3$), the donor molecule is ammonia and the acceptor molecule is boron trifluoride. N atom of ammonia donates a lone pair of electrons to B atom of boron trifluoride and forms co-ordinate covalent bond.

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

$S _1$: AgCl with liquid ammonia forms a complex $[Ag(NH _3) _2]^+$.
$S _2$: Ammonium dichromate on heating decomposes to give nitrogen and a green colored compound.
$S _3$: CaNCN on hydrolysis produces a white precipitate and a gas which turns filter paper moistened with copper sulphate solution deep blue.

  1. T T T

  2. T F T

  3. F F T

  4. T T F
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

$AgCl+NH _3\rightarrow [Ag(NH _3) _2]^++Cl^-$
$(NH _4)Cr _2O _7\xrightarrow {\Delta}N _2+Cr _2O _3+4H _2O$
$CaNCN+3H _2O\rightarrow \underset {(white\ ppt.)}{CaCO _3}+2NH _3$
So, all the three statements are correct.