Question 1

Rank the following in the correct order of increasing wavelength:

Options :

A : X-rays, Gamma rays, Visible light, Radio waves, UV

B : Gamma rays, X-rays, Infrared, UV, Radio waves

C : Radio waves, Infrared, UV, X-rays, Gamma rays

D : X-rays, Gamma rays, UV, Infrared, Radio waves

E : Gamma rays, X-rays, UV, Infrared, Radio waves

Answer: A

Question 2

What is the pH of 0.001M NaOH solution?

Options :

A : 11

B : 3

C : 13

D : 8

E : 5

Answer: A

Question 3

Three consecutive prime numbers add up to 223. What is the smallest of these numbers?

Options :

A : 61

B : 67

C : 68

D : 71

E : 79

Answer: D

Question 4

What is the total number of orbitals in the third shell (n = 3)?

Options :

A : 1

B : 4

C : 9

D : 16

E : 25

Answer: C

Question 5

A square has an area of 36. If you doubled the length of the sides of the square, what will its new perimeter be?

Options :

A : 24

B : 36

C : 48

D : 52

E : 72

Answer: C

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