Chemistry Test

Result

Chemistry Test - 12

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Weekly Quiz Competition

Question 1
1 / -0

A

Option 2

B

Option 3

C

Option 4

D

Option 1
Question 2
1 / -0

A

(b), (d)

B

(c), (d)

C

(a), (b)

D

(a), (c)
Question 3
1 / -0

Which one of the following bases is not present in DNA?

A

Cytosine

B

Quinoline

C

Thymine

D

Adenine
Question 4
1 / -0

A

- 1

B

1/2

C

- 1/2

D

1
Question 5
1 / -0

An ideal gas in a thermally insulated vessel at internal pressure = P1, volume = V1 and absolute temperature = T1 expands irreversibly against zero external pressure, as shown in the diagram. The final internal pressure, volume and absolute temperature of the gas are P2, V2 and T2, respectively. For this expansion,

A

All of these

B

q = 0

C

P2 V2 = P1 V1

D

T2 = T1
Question 6
1 / -0

Resistance of 0.2 M solution of an electrolyte is 50 Ω. The specific conductance of the solution is 1.4 S m^-1.The resistance of 0.5 M solution of the same electrolyte is 280 Ω. The molar conductivity of 0.5 M solution of the electrolyte in S m^2 mol^-1 is:

A

5 × 10^-4

B

5 × 10^3

C

5 × 10^4

D

5 × 10^-3
Question 7
1 / -0

On heating an aliphatic primary amine with chloroform and ethanolic potassium hydroxide, the organic compound formed is:

A

an alkanediol

B

an alkyl isocyanide

C

an alkanol

D

an alkyl cyanide
Question 8
1 / -0

A

Option 2

B

Option 1

C

Option 3

D

Option 4
Question 9
1 / -0

10 cm^3 of 0.1 N monobasic acid requires 15 cm^3 of sodium hydroxide solution whose normality is

A

0.066 N

B

0.66 N

C

0.15 N

D

1.5 N
Question 10
1 / -0

Consider all possible isomeric ketones, including stereoisomers of MW = 100. All these isomers are independently reacted with NaBH4 (NOTE: stereoisomers are also reacted separately). The total number of ketones that give a racemic product(s) is/are

A

4

B

6

C

5

D

7