Identify the correct resonance structures of carbon dioxide from one given below

a.  -O-C=O+

b.  O=C=O

c.  -OC-O+

d.  -O-CO+

Choose the correct option:

1. (a, b)

2. (b, c)

3. (c, d)

4. (b, d)

Subtopic:  Compounds of Carbon, Preparations, Properties & Uses |
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

A compound X, of boron, reacts with NH3 on heating to give another compound Y which is called inorganic benzene. The compound X can be prepared by treating BF3 with lithium aluminum hydride. The compounds X and Y are represented by the formulas.

1.  B2H6, B3N3H6

2.  B2O3, B3N3H6

3.  BF3, B3N3H6

4.  B3N3H6, B2H6

Subtopic:  Compounds of Boron- Preparations, Properties & Uses |
 84%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Quartz is extensively used as a piezoelectric material, it contains-

1.  Pb

2.  Si

3.  Ti

4.  Sn

Subtopic:  Properties of Structure of SiO2 & Other Compounds |
 85%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The most commonly used reducing agent among the following is :

1. AlCl3 

2. PbCl2

3. SnCl4

4. SnCl2

Subtopic:  Properties of Glass, Pb & Sn compounds |
 69%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Dry ice is:

1. Solid NH3

2. Solid SO2

3. Solid CO2

4. Solid N2

Subtopic:  Carbon Family - Preparations, Properties & Uses |
 95%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The reason for the small radius of Ga compared to Al is-.

a.  Poor screening effect of d and f orbitals

b.  Increase in nuclear charge

c.  Presence of higher orbitals

d.  Higher atomic number

Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)

Subtopic:  Boron Family- Preparations, Properties & Uses |
 83%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The linear shape of CO2 is due to _______.

a.  sp3 hybridisation of carbon

b.  sp hybridisation of carbon

c.  - bonding between carbon and oxygen

d.  sp2 hybridisation of carbon

Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)

Subtopic:  Compounds of Carbon, Preparations, Properties & Uses |
 85%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Me3SiCl is used during polymerization of organ silicones because

a.  Chain length of organic silicone polymers can be controlled by adding Me3SiCl

b.  Me3SiCl blocks the end terminal of silicone polymer

c.  Me3SiCl improves the quality and yield of the polymer

4.  Me3SiCl acts as a catalyst during polymerization

Choose the correct option

1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)

Subtopic:  Properties of Structure of SiO2 & Other Compounds |
 83%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The correct statements among the following are:

a. Fullerenes have dangling bonds
b. Fullerenes are cage-like molecules
c. Graphite is thermodynamically the most stable allotrope of carbon
d. Graphite is slippery and hard and therefore used as a dry lubricant in machines.


1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)

Subtopic:   Structure & Properties of Allotropes of C |
 71%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Which of the following statements are correct?

(Answer on the basis of the given figure.)


 

a. The two bridged hydrogen atoms and the two boron atoms lie in one plane
b. Out of six B-H bonds, two bonds can be described in terms of 3-center-2-electron bonds
c. Out of six B-H bonds, four B-H bonds can be described in terms of 3 center 2 electron bonds
d.  The four-terminal B-H bonds are two center-two electron angular bonds

Choose the correct option

1. (a, b, c)
2. (b, c, d)
3. (a, c, d)
4. (a, b, d)

Subtopic:  Compounds of Boron- Preparations, Properties & Uses |
 61%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch