Carbogen is:

1.  mixture of O2+5-10% CO2

2.  used by pneumonia patients for respiration

3.  used by victims of CO for respiration

4.  all of the above

Subtopic:  Carbon Family - Preparations, Properties & Uses |
 79%
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NEET 2023 - Target Batch - Aryan Raj Singh
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If a person is injured by the shot of a gun and all the pellets could not be removed, it may cause poisoning by:

1.  Hg

2.  Pb

3.  Fe

4.  As

Subtopic:  Properties of Glass, Pb & Sn compounds |
 76%
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NEET 2023 - Target Batch - Aryan Raj Singh
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The carbon of microphones used in public address systems is:

1.  graphite

2.  charcoal

3.  coke

4.  lamp black

Subtopic:   Structure & Properties of Allotropes of C |
 63%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

Which element of group 14 forms only one hydride?

1.  C

2.  Si

3.  Sn

4.  Pb

Subtopic:  Carbon Family - Preparations, Properties & Uses |
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NEET 2023 - Target Batch - Aryan Raj Singh
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The thermal stability order for group 14 halides is:

1.  GeX2 < SiX2 < SnX2 < PbX2

2.  SiX2 < GeX2 < PbX2 < SnX2

3.  SiX2 < GeX2 < SnX2 < PbX2

4.  PbX2 < SnX2 < GeX2 < SiX2

Subtopic:  Carbon Family - Preparations, Properties & Uses |
 65%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

The correct statement regarding polymeric silicon dioxide is -

 
1. Each silicon atom is surrounded by four oxygen atoms and each oxygen atom is bonded to two silicon atoms.
2. Each silicon atom is surrounded by two oxygen atoms and each oxygen atom is bonded to two silicon atoms.
3. Silicon atom is bonded to two oxygen atoms.
4. These are double bonds between silicon and oxygen atoms.
Subtopic:  Properties of Structure of SiO2 & Other Compounds |
 80%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

PbO2 on reaction with HNO3 gives gas:

1. NO2

2. O2

3.  N2

4.  N2O

Subtopic:  Properties of Glass, Pb & Sn compounds |
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NEET 2023 - Target Batch - Aryan Raj Singh
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AlF3 is soluble in HF only in the presence of KF due to the formation of:

1. K3[AlF3H3] 2. K3[AlF6]
3. AlH3 4. K[AlF3H]
Subtopic:  Boron Family- Preparations, Properties & Uses |
 79%
From NCERT
NEET - 2016
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NEET 2023 - Target Batch - Aryan Raj Singh

The correct statement among the following is :

1. Sn2+ is an oxidizing agent while Pb4+ is a reducing agent.
2. Sn2+ and Pb2+ both are oxidizing agents.
3. Sn4+ is a reducing agent while Pb4+ is an oxidizing agent.
4. Sn2+ is a reducing agent while Pb4+ is an oxidizing agent.

Subtopic:  Carbon Family - Preparations, Properties & Uses |
 67%
From NCERT
NEET - 2017
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

An element that cannot form MF63- ion is-

1. Ga 2. Al
3. B 4. In
Subtopic:  Compounds of Boron- Preparations, Properties & Uses |
 80%
From NCERT
NEET - 2018
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NEET 2023 - Target Batch - Aryan Raj Singh
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Links
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NEET 2023 - Target Batch - Aryan Raj Singh