Jamb Chemistry 2015 Past Questions and Answers

Question 56:

• JAMB 2015

If glucose is heated on the concentration tetraoxosulphate(iv)acid, it will be dehydrated

A. Carbon
B. Carbon(iv)oxide
C. Ethane
D. Ethanol

Question 57:

• JAMB 2015

Rare gases are suitable because they

A. Are monoatomic
B. Form ions easily
C. Have duplet or octet electronic configuration in the outermost shells in their atoms
D. Are volatile gases

Question 58:

• JAMB 2015

Which of the following compounds can be represented by the molecular formula C2 H6O?

A. Propanal
B. Ethanol
C. Methanoic acid
D. Glucose

Question 59:

• JAMB 2015

Two equal bulbs, one containing ammonia and the other one opened mouth-to mouth to each other at temperature the entropy in the mixture of gases is likely to

A. Remain unchanged
B. Increase
C. Decrease
D. Charge

Question 60:

• JAMB 2015

what is the pH of 0.00lmoldm³ solution of sodium hydroxide

A. 14
B. 13
C. 12
D. 11