Jamb Chemistry Past Questions and Answers

Question 2146:

• JAMB 2020

Which of the following gases will rekindle a brightly splint?

A. NO\(_2\)
B. NO
C. N\(_2\)O
D. CL\(_2\)

Question 2147:

• JAMB 2020

The shape of ammonia molecule is?

A. Trigonal planar
B. Octahedral
C. Square planar
D. Tetrahedral

Question 2148:

• JAMB 2020

A few drop of conc HCL are added to about 10cm\(^3\) of a solution of PH 3.4. The PH of the resulting mixture is?

A. Less than 3.4
B. Greater than 3.4
C. Unaltered
D. The same as that of the pure water

Question 2149:

• JAMB 2020

Chromatography is used to separate components of mixture which differ in their rates of ?

A. Diffusion
B. Migration
C. Reaction
D. Sedimentation

Question 2150:

• JAMB 2020

Deliquescent substances are also?

A. Efflorescent
B. Anhydrous
C. Hygroscopic
D. Insoluble