Nitrous Oxide

Q.

calculate the number of atoms in C6H12O6

Q. The treatment of galena with ${\text{HNO}}_3$ produces a gas that is

1. an acidic oxide
2. bent in geometry
3. colorless
4. paramagnetic

Q.

How nitrogen fixation takes place by lightning and industries?

Q.

What is the colour of ${\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7$.?

Q. Which pair of oxides of nitrogen is paramagnetic ?

1. $N_2{O}_5,N_{2}O$
2. $NO,N_{2}O$
3. $N_2{O}_5,N{O}_2$
4. $NO,N{O}_2$

Q.

Can nitric acid be stored in the glass?

Q. Among the given oxides of nitrogen ; $N_{2}O,N_2{O}_3,N_2{O}_4$ and $N_2{O}_5$, the number of compound/(s) having $N-N$ bond is:

Q.

An oxide of Nitrogen as a molecular weight of 30. Total number of electrons in 1 molecule of the compound is

A. 15

B. 30

C. 45

D. 60

Q. Which of the following oxides of nitrogen is a mixed anhydride of two acids?

1. N₂O₃
2. N₂O₄
3. N₂O₅
4. NO

Q.

What happens when nitric acid is added to eggshell? Give a reason for your observation.

Q. In acid rain sulfuric acid and nitric acid are formed. Please give the reactions?

Q.

Assertion: Nitrogen and Oxygen are the main components in the atmosphere but these do not react to form oxides of nitrogen.

Reason: The reaction between nitrogen and oxygen requires high temperature.

1. Both assertion and reason are correct, and the reason is the correct explanation for the assertion

2. Both assertion and reason are correct, but the reason is not the correct explanation for the assertion.

3. The assertion is incorrect, but the reason is correct

4. Both the assertion and reason are incorrect.

Q.

Name the compound HNO₃

Q. Nitrous oxide $\left(N_{2}O\right)$ can be formed by the decomposition of

1. 
2. 
3. 
4. All of these

Q.

What is the term that is used when a binary compound of oxygen Combines with another element?

Q.

An oxide of nitrogen has a molecular weight of 30 .total number of electrons in one molecule of the compound is

Q.

A sample of vitamin C is known to contain 2.58 × 10²⁴ oxygen atoms. a) How many moles of oxygen atoms are present in the sample? b) Find moles of oxygen molecules present in the sample.

Q. Atomicity of ammonium phosphate molecule is
a)5 b)10 c)15 d)20
What is atomicity?

Q. How many of the species are paramagnetic?

1. 2
2. 3
3. 5
4. 4

Q. Which of the following trihallides of nitrogen has the highest dipole moment, and why? 1) NF3; 2) NBr3; 3) NI3; 4) NCl3.

Q. Nitrous oxide is also called “Laughing Gas” – True or False?

1. True
2. False

Q.

Name the gas that is produced in each of the following cases:

Sulphur is oxidized by concentrated Nitric acid

Q. 1 gram-atom of nitrogen represents A)6.022 × 10^23 molecules B)22.4 L N2 at STP C)11.2 L N2 at STP D) 28g of Nitrogen

Q. Which of the following oxide formed when dinitrogen is heated with oxygen?

1. $N{O}_2$
2. $NO$
3. $N_2{O}_5$
4. $N_2{O}_3$

Q.

Why commercial sample of nitric acid is pale yellow in colour?

Q. Pyrophosphoric acid on heating to ${600}^{\circ }C$ gives

1. 
2. 
3. 
4. 

Q. Nitrous oxide is also called “Laughing Gas” – True or False?

1. True
2. False

Q. Elements A and B do not form solid bicarbonate but react with $N_2$ to give nitrides. Which of the following can be A and B?

1. $Li,Mg$
2. $Rb,Na$
3. $Ca,Cs$
4. $Ca,Na$

Q. Neutral oxide out of following is

1. CO
2. NO
3. $N_{2}O$
4. All of these

Q. Which of the following give no residue on heating ?

1. $N{H}_{4}N{O}_3$
2. $N{H}_{4}N{O}_2$
3. $(N{H}_4{)}_{2}C{r}_2{O}_7$
4. $N{H}_{4}Cl$