1
NDA General Ability 21 April 2024
MCQ (Single Correct Answer)
+4
-1.33
Change Language

Which among the following is the correct composition of Borax?

A

Sodium, Boron, Magnesium and Hydrogen

B

Sodium, Boron, Oxygen and Hydrogen

C

Potassium, Boron, Oxygen and Hydrogen

D

Sodium, Boron, Nitrogen and Hydrogen

2
NDA General Ability 21 April 2024
MCQ (Single Correct Answer)
+4
-1.33
Change Language

Which one among the following oxides has the highest melting point?

A

Na$_{2}$O

B

MgO

C

Fe$_{2}$O$_{3}$

D

CuO

3
NDA General Ability 21 April 2024
MCQ (Single Correct Answer)
+4
-1.33
Change Language

Leaves of most plants appear green because the chlorophyll present in it :

A

absorbs red and blue light while reflecting green light.

B

absorbs green light only.

C

absorbs green light while reflecting red and blue light.

D

reflects red light and absorbs blue and green light.

4
NDA General Ability 21 April 2024
MCQ (Single Correct Answer)
+4
-1.33
Change Language

In most prokaryotes, the chromosome number is:

A

4

B

3

C

2

D

1

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