1
NDA General Ability 16 April 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
What is the specific purpose of using potassium hydroxide during the saponification process?
A
To obtain soaps which are hard on the skin
B
To obtain soaps which are soft on the skin
C
To obtain natural fragrance
D
To make the saponification very economical
2
NDA General Ability 16 April 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following is the correct arrangement of metals in the decreasing order of their reactivity?
A
Iron, Sodium, Silver, Copper
B
Silver, Copper, Iron, Sodium
C
Sodium, Copper, Silver, Iron
D
Sodium, Iron, Copper, Silver
3
NDA General Ability 16 April 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which among the following statements is not correct with respect to allotropes of Carbon?
A
Graphite is a good conductor of electricity.
B
Diamond is the hardest substance known.
C
Fullerene is one of the allotropes of carbon.
D
Next to diamond, graphite is the second hardest known substance.
4
NDA General Ability 16 April 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which among the following is the popular method for manufacture of ammonia?
A
Ostwald's process
B
Haber-Bosch process
C
Electric furnace process
D
Electrolysis process
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12