Chemistry Test 184

Result

Chemistry Test 184

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Weekly Quiz Competition

Question 1
4 / -1

The correct IUPAC name of following compound is

A
1–(2– hydroxycyclohexyl) butan–2– ol

B
4–(2– hydroxycyclohexyl) butan–3– ol

C
1–(2–hydroxybutyl) cyclohexan– 2– ol

D
2–(2–hydroxybutyl) cyclohexan– 1– ol

Solution

(2- hydroxybutyl) group is substituent.
Question 2
4 / -1

A hydrocarbon (P) on ozonolysis in presence of zinc gives only one dicarbonyl compound, which gives both Tollen’s and iodoform test. Identify the structure of (P).

A

B

C

D

Solution
Question 3
4 / -1

Consider the true/false of the following statements:

S₁: The most stable resonating structure of p-nitrophenol (not having aromatic ring) is

S₂ : In all C–O bonds are of equal length.

S₃ : CH₃COONa is more resonance stabilised than the protonated acid CH₃COOH.

S₄ : Benzene ring is more electron dense in phenol than phenoxide.

A
TTTT

B
FTTT

C
FTTF

D
FFTF

Solution

S₁ : Most stable resonating structure is

group has greater +m effect, so it makes phenoxide ion more electron dense.
Question 4
4 / -1

Choose the strongest base among the following :

A

B

C

D

Solution

Only in (D) the l.p of N atom is not involved in resonance with benzene ring.
Question 5
4 / -1

A hydrocarbon ‘X’ C₇H₁₀ is catalytically hydrogenated to C₇H₁₄ ‘Y’. 'Y' gives six monochloro products after photochemical chlorination. The structure of 'X' is -

A

B

C

D

Solution

C₇H₁₀ DU = 3

six monochloro products
Question 6
4 / -1

The feasible reaction is :

A

B

C

D

Solution

Salicylic acid is more acidic than p-hydroxy benzoic acid.
Question 7
4 / -1

The incorrect information about the given reaction is :

A
The compound (I) may show racemisation due to enolisation.

B
The compound (I) is enolisable.

C
The asymmetric carbon atom has not undergone any inversion during the reaction.

D
Both compound (I) and (II) have same configurational ‘R’.

Solution

The compound (I) does not racemise during enolisation, because the carbon atom with α-H is not asysmmetric carbon atom.
Question 8
4 / -1

For the given reaction the correct reactivity order of H-atoms is :

A
x > y > z > w

B
y > x > z > w

C
z > y > w > x

D
y > z > x > w

Solution

Reactivity depends upon stability of free radicals generated at y,zx and w respectively.
Question 9
4 / -1

In the given sequence of reactions which of the following is the correct structure of compound A.

A

B

C

D

Solution
Question 10
4 / -1

Which of the following is not correctly ordered for resonance stability

A

B

C

D

Solution

Follow the rules for stability of resonating structures (structure with more number of p-bonds is more stable).