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

Identify the incorrect pairing of hormone to site of secretion:

Options :

A : Glucagon – alpha cells

B : Angiotensinogen – liver

C : GnRH – anterior pituitary

D : TRH – hypothalamus

E : Oxytocin – posterior pituitary

Answer: C

Question 3

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 4

Which of the following violates the conditions of a population under Hardy-Weinberg equilibrium?

Options :

A : Population is large.

B : There are no mutations occurring.

C : Sexual selection

D : There is no immigration or emigration occurring.

E : Random mating

Answer: C

Question 5

Which of the following has the highest melting point?

Options :

A : Ethane

B : 2,2-Dimethylpropane

C : Propane

D : Butane

E : Pentane

Answer: B