JAMB Chemistry Past Questions & Answers - Page 246

1,226.

An example of aromatic compound is?

A.

C6H13OH

B.

C6H13CI

C.

C6H5OH

D.

C6H14

View answer & explanation

Correct answer is C

No explanation has been provided for this answer.

1,227.

How many structural isomers can be drawn for the non-cyclic alkanol with molecular formula C 4H10O?

A.

1

B.

2

C.

3

D.

4

View answer & explanation

Correct answer is D

No explanation has been provided for this answer.

1,228.

On cracking medicinal paraffin, a gas is evolved which gives a pop sound with a lighted splinter and an oily liquid which decolourizes bromine solution is also obtained. The products of the cracking are ?

A.

carbon (IV) oxide and alkyne

B.

carbon (ll) oxide and alkene

C.

hydrogen gas and alkene

D.

hydrogen gas and alkane

View answer & explanation

Correct answer is C

No explanation has been provided for this answer.

1,229.

One mole of hydrocarbon contains 6g of hydrogen. If the molecular weight is 54, the hydrocarbon is an?

A.

alkanone

B.

alkane

C.

alkene

D.

alkyne

View answer & explanation

Correct answer is D

CxH6
∴ CxH6 = 54
12x + 6 = 54
12x = 54 - 6
12x = 48
x = (48)/(12)
x = 4
We have CxH6 butyne
A formular of alkyne

1,230.

Alloys are often used in preference to pure metals because?

A.

metals are too hard

B.

merals are ductile

C.

metallic properties are improve in alloys

D.

alloys are a mixture of metals

View answer & explanation

Correct answer is C

No explanation has been provided for this answer.


JAMB Subjects

English Language

Mathematics

Biology

Chemistry

Physics

Agricultural Science

Geography

Government

Economics

History

Fine Arts

Commerce

Music

Physical Education

Further Mathematics

Literature in English

Islamic Religious Knowledge

Christian Religious Knowledge

Office Practice

Marketing

Civic Education

Insurance

Accounting


Aptitude Tests

Logical Reasoning Questions and Answers

Puzzles Questions and Answers

Spatial Reasoning Questions and Answers

Abstract Reasoning Questions and Answers

Situational Judgement Questions and Answers

Verbal Reasoning Questions and Answers

Nigeria General Knowledge Questions and Answers

Quantitative Reasoning Questions and Answers

Data Interpretation Questions and Answers

Numerical Reasoning Questions and Answers

Typing Speed and Accuracy Test

Microsoft Office Questions and Answers

Personality Test

See all →

View latest jobs in Nigeria today