Tag: nitrogen and sulfur

Questions Related to nitrogen and sulfur

Ammonia gas on passing through copper sulphate solution gives:

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

  1. yellow colour solution

  2. blue colour solution

  3. brown colour solution

  4. red colour solution

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Correct Option: B
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.

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

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

  1. Vinegar in bottles under pressure

  2. Ammonium nitrate

  3. Gold chloride

  4. Caustic soda

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Correct Option: B
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.

Ammonia burns with oxygen to give :

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

  1. nitrogen and water vapour

  2. nitrogen and steam

  3. both a and b

  4. none

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Correct Option: C
Explanation:

${ 4NH } _{ 3 }+{ 3O } _{ 2 }\rightarrow { 2N } _{ 2 }+{ 6H } _{ 2 }O$

Ammonia burns with oxygen to give water vapour or steam.

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

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

  1. Calcium ammonium nitrate

  2. Ammonium chloride

  3. Ammonium phosphate

  4. Ammonium sulphate

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Correct Option: A,B,C,D
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.

Ammonia gas cannot be dried by passing through:

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

  1. conc. $H _{2}SO _{4}$

  2. anhydrous $CaO$

  3. $P _{2}O _{5}$

  4. $CuSO _{4}$

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Correct Option: A,C
Explanation:

Conc. $H _{2}SO _{4}$ & $P _{2}O _{5}$ can't be used to dry Ammonia gas.

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

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

  1. $N _{2}$ and $NH _{4}Cl$

  2. $NCl _{3}$ and $HCl$

  3. $N _{2}$ and $NCl _{3}$

  4. $NH _{4}Cl$ and $HCl$

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Correct Option: A,B
Explanation:

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

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

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

  1. True

  2. False

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Correct Option: A
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.

$NH^+ _4$ is iso structural with:

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

  1. $PCl _3$

  2. $CH _4$

  3. $BF _3$

  4. ${NO _3}^{-}$

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Correct Option: B
Explanation:

$NH^+ _4$ is iso structural with $CH _4$. Both have tetrahedral geometry.$N$ atom in $NH^+ _4$ and $C$ atom in $CH _4$ have 4 bond pairs and zero lone pairs of electrons.

$S _1$: 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.

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

  1. T T T

  2. T F T

  3. F F T

  4. T T F

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Correct Option: A
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.

The reaction between two different gases produce a solid substance as product always.

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

  1. True

  2. False

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Correct Option: B