1
NDA General Ability 16 April 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which of the hydrocarbons are arranged as per the increasing order of their boiling points?
A
Methane, Butane, Propane, Heptane
B
Propane, Butane, Pentane, Octane
C
Propane, Butane, Heptane, Methane
D
Octane, Ethane, Methane, Propane
2
NDA General Ability 16 April 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following apparatus is used for separating benzene and water mixture?
A
Round bottom flask
B
Conical flask
C
Separating funnel
D
Dean and Stark apparatus
3
NDA General Ability 16 April 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
An iron nail dipped in copper sulphate solution turns brown. This is due to which one of the following types of reactions?
A
Addition reaction
B
Decomposition reaction
C
Substitution reaction
D
Displacement reaction
4
NDA General Ability 16 April 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Toothpaste prevents tooth decay by:
A
neutralizing the excess acidity.
B
means of emulsification.
C
the action of fluoride.
D
making a coat of calcium over the teeth surface.
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
CBSE
Class 12