Idetify the correct sequence of increasing number of π bonds in the structure of the following molecules :

(I) H2S2O6     (II) H2SO3   (III)  H2S2O5

1. I II and III         2. II I and III

3. II III and I         4. I III and II

Subtopic:  Types of Chemical Bond |
 61%
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NEET 2023 - Target Batch - Aryan Raj Singh
Hints

The state of hybridisation of central atom in dimer of BH3 and BeH2 is:

(1) sp2,sp2   

(2) sp3,sp2 

(3) sp3,sp3 

(4) sp2,sp3

Subtopic:  Hybridisation |
 56%
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NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Which of the following species/molecules does not have same number of bond pairs and lone pairs?

(1) OCN- 

(2) H2O

(3) C2H2Cl2

(4) O3

Subtopic:  Hybridisation |
 57%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
Hints
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NEET 2023 - Target Batch - Aryan Raj Singh

OO bond length (in A° ) in  H2O2 and O2F2 is respectively:

1. 1.22 , 1.48 2. 1.48 , 1.22
3. 1.22 , 1.22 4. 1.48 , 1.48
Subtopic:  Acidic, Basic Character & Fajan's Rule |
 62%
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NEET 2023 - Target Batch - Aryan Raj Singh
Hints

The bond length of the SO bond in maximum in which of the following compounds?

1.  SOCI2 

2. SOBr2 

3.SOF2 

4. All have the same length

Subtopic:  Covalent Bond |
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NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Out of the two compounds shown below, the vapour pressure of B at a particular temperature is expected to be :

(A)  and (B) 

(1) Higher than that of A

(2) Lower than that of A

(3) same as that of A 

(4) can be higher or lower depending upon the size of the vessel 

Subtopic:  van der Waal Force & Hydrogen Bonding |
 65%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
Hints
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NEET 2023 - Target Batch - Aryan Raj Singh

Solubillity of alkali metal fluorides increases down the group select correct explanation for given statement :

(1) Hydration energy increase and lattice energy decrease down the group 

(2) Both energy decrease down the group but decrease in hydration energy is rapid

(3) Both energy decrease down the group but decrease in lattice energy is more

(4) both energy decrease down the group but increase in hydration energy is rapid

Subtopic:  Lattice & Hydration Energy |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

In which of the following compounds BF bond length is shortest ?

(a) BF4-       (b) BF3NH3

(c) BF3         (d) BF3NCH33

Subtopic:  Hybridisation |
 55%
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NEET 2023 - Target Batch - Aryan Raj Singh
Hints

In terms of polar character which of the following order is correct?

1. NH3<H2O<HF<H2S   

2. H2S<NH3<H2O<HF

3. H2O<NH3<H2S<HF   

4. HF<H2O<NH3<H2S

Subtopic:  Polarity |
 77%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
Hints

The correct order of boiling point among the following is:

1. T2<D2<H2                                 

2. n-pentane<neo pentane

3. Xe < Ar < He

4. m-nitrophenol > o-nitrophenol

Subtopic:  Types of Chemical Bond |
 57%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh