Engineering Chemistry I Mock Test 5

10%

Question 1 of 10

1. The factors on which electronegativity depends upon ____________

Valence state of atom

Hybridisation

Both valence state and hybridisation

None of the mentioned

Question 1 of 10

Question 2 of 10

2. The NMR spectra of the functional isomers of the molecular formula C₂H₆O show _________ and _________ signals respectively.

1, 3

1, 5

1, 4

1, 2

Question 2 of 10

Question 3 of 10

3. Arrange the following groups in the order of decreasing (-I) effect.

COOH > CN > F > Br > Cl > I > H

H > COOH > CN > I > Cl > F > Cl

CN > F > Br > Cl > COOH > I > H

CN > COOH > F > Cl > Br > I > H

Question 3 of 10

Question 4 of 10

4. How does the electronegativiy get affected with the negative oxidation state?

None of the mentioned

It increases

It remains constant

It decreases

Question 4 of 10

Question 5 of 10

5. In how many ways –CH₃ protons can couple with the protons on adjacent carbon atom relative to the external field.

Question 5 of 10

Question 6 of 10

6. What is the absorption frequency(cm^-1) of –C=N functional group?

1690-1760

1180-1360

3610-3640

2850-2960

Question 6 of 10

Question 7 of 10

7. Arrange the various electronic transitions in the order of increasing energy.

σ→σ^* < π→π^* < n→π^* < n→σ^*

n→σ^* < π→π^* < n→π^* < σ→σ^*

n→σ^* < n→π^* < π→π^* < σ→σ^*

n→π^* < π→π^* < n→σ^* < σ→σ^*

Question 7 of 10

Question 8 of 10

8. The hybridisation of carbocation is __________

Sp²

Sp³

Sp³d

Question 8 of 10

Question 9 of 10

9. In mesomeric effect, the electrons are transferred from __________

All of the mentioned

A multiple bonds to an atom

A multiple bonds to a single covalent bond

An atom with a lone pair to the adjacent single covalent bond

Question 9 of 10

Question 10 of 10

10. Larger the number of hyperconjugation structures, the stability of free radicals will __________

Increase

Decrease

None of the mentioned

Remains same

Question 10 of 10