What is the hybridisation state(s) of the atoms in X formed in the following reaction

1.  sp3 only

2.  sp2 and sp3

3.  sp2 only

4.  sp only

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4
Correct Answer :

sp3 only


Explanation :
No Explanation available for this question

Assertion (A): The bond dissociation energy of flourine is less than bromine. Reason (R): In fluorine molecule, large lone pair electronic repulsions and appreciable internuclear repulsions are present. The correct answer is

1.  Both A and R are true and R is the correct explanation of A

2.  Both A and R are true, but R is not the correct explanation of A

3.  A is true, but R is false

4.  A is false, but R is true

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4
Correct Answer :

Both A and R are true and R is the correct explanation of A


Explanation :
No Explanation available for this question

With increase in Principal Quantum number n, the energy difference between adjacent energy levels in Hydrogen atom

1.  Increases

2.  Decreases

3.  Remains constant

4.  Decreases for lower values of 'n' and increases for higher values of 'n'

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4
Correct Answer :

Decreases


Explanation :
No Explanation available for this question

Which of the following reactions of acetic acid involve COOH bond (I) Action of Na (II)Formation of acid chlorid (III) Action with NaHCO3 (IV) Formation an ester

1.  I,II

2.  II,III

3.  III,IV

4.  II,IV

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4
Correct Answer :

II,IV


Explanation :
No Explanation available for this question

Which of the following reactions yield elementary gases like N2, H2, O2 as the biproducts 1) CuO + NH3→ II) III) 8NH3 + 3Cl2 IV)

1.  I and II only

2.  II, III and IV only

3.  I, II and III only

4.  All of the above

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4
Correct Answer :

All of the above


Explanation :
No Explanation available for this question

Assertion(A): The probability of finding an electron in a small volume around a point (x, y, z) at a distance 'r' from the nucleus is proportional to φ2 Reason(R): Sub atomic particles have both wave and particle nature. The correct answer is

1.  Both A and R are true and R is the correct explanation of A

2.  Both A and R are true, but R is not the correct explanation of A

3.  A is true, but R is false

4.  A is false, but R is true

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4
Correct Answer :

Both A and R are true, but R is not the correct explanation of A


Explanation :
No Explanation available for this question

Which of the following do not obey Huckel's rule for aromaticity (I) CuO + NH3 → (II) (III) 8NH3 + 3Cl2 → (IV)

1.  All the above

2.  I, II

3.  III, IV

4.  I, IV

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4
Correct Answer :

All the above


Explanation :
No Explanation available for this question

BaSO4 is insoluble in water due to its

1.  High hydration energy

2.  High lattice energy

3.  High ionization energy

4.  High kinetic energy

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4
Correct Answer :

High lattice energy


Explanation :
No Explanation available for this question

The ratio of moles of hydrogen produced when two moles of aluminium react with excess HCl and NaOH separately is

1.  1 : 1

2.  1 : 2

3.  2 : 1

4.  3 : 2

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4
Correct Answer :

1 : 1


Explanation :
No Explanation available for this question

The correct IUPAC name of the hydrocarbon X :

1.  2-Methyl-3-ethyl pentane

2.  3-Ethyl-2-methyl pentane

3.  3-Isopropyl pentane

4.  1, l-Diethyl-2-methyl propane

View Answer  
4
Correct Answer :

2-Methyl-3-ethyl pentane


Explanation :
No Explanation available for this question
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