Nitrogen

Q.

Write the balanced chemical equations for the below reaction and identify the type of reaction in the case: Magnesium ribbon is burnt in an atmosphere of nitrogen gas to form solid magnesium nitride.

Q.

Why packets of chips are filled with nitrogen gas rather than oxygen?

Q.

What is the bond order of $\mathrm{NO}$ and ${\mathrm{NO}}^{+}$?

Q.

What is the bond order of ${\mathrm{CO}}_2$?

Q.

Calculate the bond order of ${{\mathrm{He}}_2}^{+}$

Q.

Differentiate between primary, secondary and tertiary alcohol By Victor Meyer test.

Q.

How is ${\mathrm{KMnO}}_4$ prepared from pyrolusite ore?

Q.

Why is group $15$ called pnictogens?

Q.

Dinitrogen and dihydrogen react with each other to produce ammonia according to the following chemical equation:

$\underset{\mathrm{dinitrogen}}{{\mathrm{N}}_2\left(\mathrm{g}\right)}+\underset{dihydrogen}{3H_2\left(g\right)}\to \underset{ammonia}{2N{H}_3\left(g\right)}$

(i) calculate the mass of ammonia produced if 2.00 × 10³ g dinitrogen reacts with 1.00 × 10³ g of dihydrogen.

(ii) will any of the two reactants remain unreacted? if yes which one ?

(iii) what would be its mass?

Q.

Give one example each of pseudo halide and pseudohalogen.

Q.

What are organic compounds?
Why NH4CNO (ammonium cynate) is inorganic while NH2CONH2(urea) is organic.Urea is nothing but arrangement in ammonium cynate.so why one is organic while another is inorganic.

Q.

The anions (A) form hexagonal closest packing and cation (C) occupy only 2/3 of octahedral voids in it, then the general formula of the compound is

1. C₂A₂

2. C₂A₃

3. C₃A₂

4. CA

Q.

Write the physical and chemical properties of carbon dioxide.

Q.

Nitrogen can be estimated by Kjeldahl’s method for which of the following compound?

1. 

2. 

3. 

4. 

Q.

‘4’g of hydrogen reacts with ‘20’g of oxygen to produce water. The total mass of water formed will be:

1. 20g

2. 22.5g

3. 42.0g

4. 42.2g

Q.

How do we find the bond order of ${\mathrm{SO}}_2$ (Sulphur Dioxide)?

Q.

Which compound among the following has the least ionic character?

1. $\mathrm{AgCl}$

2. $\mathrm{KCl}$

3. ${\mathrm{CaCl}}_2$

4. ${\mathrm{BaCl}}_2$

Q. Number of electrons shared in the formation of nitrogen molecule is:

1. 6
2. 10
3. 2
4. 8

Q. Which one of the following will not react with the grignard reagent $\left(C_6{H}_{5}MgBr\right)?$

1. $C_2{H}_{5}N{H}_2$
2. 
3. 
4. 

Q.

Which of the following amine will not react with nitrous acid to give nitrogen

1. 

2. 

3. 

4. 

Q. $0.2g$ of an organic compound was subjected to estimation of nitrogen by Duma’s method in which volume of $N_2$ evolved (at STP) was found to be $22.400mL.$ The percentage of nitrogen in the compound is _____. [nearest integer]
(Given : Molar mass of $N_2$ is $28gmo{l}^{-1}$,
Molar volume of $N_2$ at STP : $22.4L$)

Q.

Give orbital diagram of the following: Methane.

Q.

What is Frankland reagent?

Q. Identify a molecule which does not exist

1. $B{e}_2$
2. $N_2$
3. $B_2$
4. $C_2$

Q.

Choose the forms in which most plants absorb nitrogen (i) Proteins (ii) Nitrates and Nitrites (iii) Urea (iv) Atmospheric nitrogen. Choose.

1. (i) and (ii)

2. (ii) and (iii)

3. (iii) and (iv)

4. (i) and (iv)

Q.

Which of the following is least ionic?

1. $\mathrm{KCl}$

2. ${\mathrm{BaCl}}_2$

3. $\mathrm{AgCl}$

4. ${\mathrm{CaCl}}_2$

Q.

Write the properties of nitrogen.

Q.

Is Acetylacetone Bidentate Ligand?

Q.

Assertion $\left(A\right):$ In the dissociation of $PC{l}_5$ at constant pressure and temperature addition of helium at equilibrium increases the dissociation of $PC{l}_5.$

Reason $\left(R\right):$ Helium removes $C{l}_2$ from the field of action.

1. Both $A$ and $R$ are true and $R$ is the correct explanation of $A.$

2. $A$ is false but $R$ is true.

3. $A$ is true but $R$ is false.

4. Both $A$ and $R$ are true but $R$ is not the correct explanation of $A.$

Q. What is covalent bond?