Organic Chemistry Test

Result

Organic Chemistry Test - 33

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Weekly Quiz Competition

Question 1
4 / -1

Middle ton’s test is used to detect

A
N

B
P

C
X

D
S
Question 2
4 / -1

An organic compound weighing 4.337 mg yielded 10.35 mg of CO₂ and 3.42 mg of H₂O on oxidation with CuO. Calculate the empirical formula of the compound.

A
C₃H₅

B
C₃H₅O

C
C₄H₆O

D
C₁₀H₁₆O₃
Question 3
4 / -1

An organic compound contains 69% C and 4.8% H, the remainder being oxygen. Calculate the masses of CO₂ and H₂O produced when 0.2 gm of this substance is completely combusted.

A
0.506g & 0.864g

B
0.0864g & 0.0506g

C
0.506g & 0.0684g

D
0.506g & 0.0864g
Question 4
4 / -1

0.3780 gm of chlorine containing organic compound gave 0.5740 gm of silver chloride in Carius estimation. Calculate the % of Cl.

A
37.56%

B
40.5%

C
35.7%

D
31.23%
Question 5
4 / -1

In the estimation of sulphur by Carius method, 0.468 gm of organic compound gave 0.668 gm BaSO₄ . Calculate % of S.

A
19.6

B
21.7

C
17.9

D
16.9
Question 6
4 / -1

Statement (A) : Vapour density and density both are same
Reason (R) : Molecular weight is twice the density

A
If both A and R are true, and reason is the true explanation of the assertion.

B
If both A and R are true, but R is not the true explanation of the A.

C
If A is true but R is false.

D
If both A and R are false.
Question 7
4 / -1

Statement (A) : Lassaigne’s test is shown by diazonium salts.
Reason (R) : Diazonium salts are volatile.

A
If both A and R are true, and reason is the true explanation of the assertion.

B
If both A and R are true, but R is not the true explanation of the A.

C
If A is true but R isfalse.

D
If both A and R are false.
Question 8
4 / -1

Name of following compound according to IUPAC nomenclature is

A
4–methoxy–2–nitrobenzaldehyde

B
4–formyl–3–nitroanisole

C
4–methoxy–6–nitrobenzaldehyde

D
2–formyl–5–methylnitrobenzene

Solution
Question 9
4 / -1

The IUPAC name of the compound is :

A
5-formylhex-2-en-3-one

B
5-methyl-4-oxohex-2-en-5-al

C
3-keto-2-methylhex-5-enal

D
3-keto-2-methylhex-4-enal

Solution
Question 10
4 / -1

IUPAC name of

A
2–ethyl butene

B
2–ethyl but–2–ene

C
3–methyl pent–2–ene

D
None of these

Solution