Chemistry Test 60

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Chemistry Test 60

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Chemistry Test 60

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Question 1/4
4 / -1

What is the correct IUPAC name of the following compound.

H₂C=CH–CH₂–C≡CH

Correct

Wrong

Skipped
A
Pent-1-en-4-yne

Correct

Wrong

Skipped
B
Pent-4-ene-1-yne

Correct

Wrong

Skipped
C
Pent-1-yne-4-ene

Correct

Wrong

Skipped
D
1-Ethenyl-prop-1-yne
Question 2/4
4 / -1

Which of the following statement is wrong for H-like atom -

Correct

Wrong

Skipped
A
Magnitude of energy of an orbit in H-like species is directly proportional to 1/n²

Correct

Wrong

Skipped
B
Frequency of revolution of an electron in an orbit is proportional to n³

Correct

Wrong

Skipped
C
Radius of a Bohr orbit is proportional to n²

Correct

Wrong

Skipped
D
Time period of revolution of an electron is proportional to n³
Question 3/4
4 / -1

Which of the following IUPAC name is/are incorrect ?

Correct

Wrong

Skipped
A
1-Amino-1-oxo butane

Correct

Wrong

Skipped
B
2-Ethyl-6-methyl heptane

Correct

Wrong

Skipped
C
3,5-Dimethyl hexane

Correct

Wrong

Skipped
D
All are correct
Question 4/4
4 / -1

Crude calcium carbide is made in an electric furnace by the reaction

CaO + 3C → CaC₂ + CO ↑

The final crude product contains 80% CaC₂ and 20% unreacted CaO, by mass.

How much CaO is to be added to the furnace charge for each 1280 kg of pure CaC₂ produced?

Correct

Wrong

Skipped
A
1120 kg

Correct

Wrong

Skipped
B
1440 kg

Correct

Wrong

Skipped
C
1152 kg

Correct

Wrong

Skipped
D
1344 kg

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