Question 1

Darwin’s theory of evolution can be described best by

Options :

A : descent without modification

B : descent with modification

C : inheritance of acquired traits

D : random genetic mutations

E : unlimited natural resources

Answer: B

Question 2

What would be the minimum angle of incidence so that a ray of light travelling from medium 1 of refractive

index 1.7 to medium 2 of refractive index 1.5 does not emerge out of medium 2?

Options :

A : sin−1(0.88)

B : cos−1(0.88)

C :

tan−1(0.88)

D : tan−1(1.13)

E :

sin−1(1.13)

Answer: A

Question 3

If you are dealt 5 cards in a game of draw poker, and 3 of them are 5's what is the probability you will get

another 5 if you draw 2 cards?

Options :

A : 2/47

B : 2/49

C : 1/6

D : 2/13

Answer: A

Question 4

This reaction produces an acidic solution.

Options :

A : HI(aq) + NaOH(aq)

B : H2O(l) + HOCl(aq)

C : K(s) + H2O (aq)

D : Xe(g) + H2O(g)

E : Zn(s) + CuSO4(aq)

Answer: B

Question 5

Of the following compounds, which one reacts the most vigorously with water?

Options :

A : HCl

B : Na

C : Zn

D : Fe

E : Li

Answer: B