PH3 forms bubbles when passed slowly through water but NH3 gets dissolved in water, because: 

1. NH3 forms an H-bond with water, so it is soluble but PH3 does not form an H-bond.
2. NH3 does not form an H-bond with water, so it is soluble but PH3 does form an H-bond.
3. NH3 and PHboth form H-bond with water. 
4. NH3 and PHboth do not form H-bond with water.

Subtopic:  Group 15 - Preparation, Properties & Uses |
 92%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The bonding present in nitrogen molecules is:
1. \(p\pi-p\pi\)
2. \(p\pi-d\pi\)
3. \(d\pi-d\pi\)
4. Only sigma bond

Subtopic:  Group 15 - Preparation, Properties & Uses |
 93%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

NH3 forms a hydrogen bond but PH3 does not because:  

1. Phosphorus is more electronegative as compared to nitrogen.
2. Nitrogen is more electronegative as compared to phosphorus.
3. Nitrogen and phosphorous have equal electronegativity.
4. Nitrogen is more stable as compared to phosphorus.

Subtopic:  Group 15 - Preparation, Properties & Uses |
 90%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Match the name of process given in column I with the name of compound given in
column II and mark the correct option.

(a) Pure nitrogen (i) Chlorine
(b) Haber process (ii) Sulphuric acid
(c) Contact process (iii) Ammonia
(d) Deacon's process (iv) Sodium azide or Barium azide
 
(a) (b) (c) (d)
1. (iv) (iii) (ii) (i)
2. (i) (ii) (iii) (iv)
3. (ii) (iv) (i) (iii)
4. (iii) (iv) (ii) (i)
Subtopic:  Group 15 - Preparation, Properties & Uses |
 88%
From NCERT
NEET - 2019
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

 Match the formulas of oxides given in Column I with the type of oxide given in Column II and mark the correct option.

Column I Column II
A.  Pb3O4 1. Neutral oxide
B.  N2O 2. Acidic oxide
C.  Mn2O7 3. Basic oxide
D.  Bi2O3 4. Mixed oxide

Codes

A B C D
1. 1 2 3 4
2. 4 1 2 3
3. 3 2 4 1
4. 4 3 1 2
Subtopic:  Group 15 - Preparation, Properties & Uses |
 84%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The respective oxidation states of P in H4P2O5, H4P2O6, and H4P2O7 are: 

1. +3, +5, and +4 2. +5, +3, and +4
3. +5, +4, and +3 4. +3, +4, and +5
Subtopic:  Group 15 - Preparation, Properties & Uses |
 86%
From NCERT
AIPMT - 2010
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

A balanced chemical equation for the reaction showing catalytic oxidation of NH3 by atmospheric oxygen is:

1. 4NH3 + \(\underset{\text{From air}}{5O_2} \)   \(\xrightarrow[\text{500 K; 9 bar}]{\text{Pt / Rh gauge catalyst}}\)   4NO + 6H2O
2. 3NH4 + \(\underset{\text{From air}}{5O_2} \)  \(\xrightarrow[\text{500 K; 9 bar}]{\text{Pt / Rh gauge catalyst}}\)  3NO + 6H2O
3. 4NH3 + \(\underset{\text{From air}}{5O_2} \)  \(\xrightarrow[\text{cold}]{\text{no catalyst}}\)  4NO + 6H2O
4. 3NH4 + \(\underset{\text{From air}}{5O_2} \)  \(\xrightarrow[\text{cold}]{\text{no catalyst}}\)  3NO + 6H2O
Subtopic:  Group 15 - Preparation, Properties & Uses |
 84%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Nitrogen gas is liberated by the thermal decomposition of:

1. NH4NO2                                 

2. NaN3

3. NH42Cr2O7                           

4. All of the above. 

Subtopic:  Group 15 - Preparation, Properties & Uses |
 82%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

A brown-coloured mixture of two gases is obtained by reducing 6 N nitric acid with metallic copper. This mixture on cooling condenses to a blue liquid which on freezing (-30 oC) gives a blue solid. The correct statement for the blue liquid or solid is: 

1. It is referred to as the anhydride of nitrous acid.
2. It is an acidic oxide. Hence, it dissolves in alkalies producing nitrites.
3. It can also be prepared by the action of 50 % HNO3 on arsenious oxide and then cooling to 250 K.
4. All of the above.

Subtopic:  Group 15 - Preparation, Properties & Uses |
 82%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

The correct structure of pyrophosphoric acid is:

1. 2.
3. 4.
Subtopic:  Group 15 - Preparation, Properties & Uses |
 83%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh