Engineering Chemistry I Mock Test 5

10%

Question 1 of 10

1. Hyperconjugation involves the delocalisation of __________

Both σ and π bond orbital

σ bond orbital

π bond orbital

None of the mentioned

Question 1 of 10

Question 2 of 10

2. When the contributing structure contains the same number of two-electron bonds as the normal lewis formula, it will be __________

Heterovalent hyperconjugation

All of the mentioned

Sacrificial hyperconjugation

Isovalent hyperconjugation

Question 2 of 10

Question 3 of 10

3. Which of the following is not an auxochrome group?

–O₂

–OH

–OR

–SH

Question 3 of 10

Question 4 of 10

4. The electronegativity of sp² hybridised atom will be ____________

2.75

3.29

2.48

3.69

Question 4 of 10

Question 5 of 10

5. Arrange the following groups in the order of decreasing (+I) effect.

CR₃ > C₆H₅O^- > H > COO^- > CHR₂

C₆H₅O^- > COO^- > CHR₂ > CR₃ > H

C₆H₅O^- > H > CR₃ > CHR₂ > COO^-

C₆H₅O^- > COO^- > CR₃ > CHR₂ > H

Question 5 of 10

Question 6 of 10

6. Which of the following is a resonance effect?

Mesomeric effect

Inductive effect

Inductomeric effect

Electromeric effect

Question 6 of 10

Question 7 of 10

7. IR spectroscopy helps in detecting the presence of hydrogen bonding.

False

True

Question 7 of 10

Question 8 of 10

8. For NMR spectrum, carbon tetrachloride and water can be successfully used as a solvent.

True

False

Question 8 of 10

Question 9 of 10

9. The factors on which electronegativity depends upon ____________

None of the mentioned

Valence state of atom

Hybridisation

Both valence state and hybridisation

Question 9 of 10

Question 10 of 10

10. Number of NMR signals obtained in CH₃COCH₃ will be ____________

Question 10 of 10