1816: A man whose blood group is not known meets with a serious accident and needs blood transfusion immediately. Which one of the blood groups mentioned below and readily available in the hospital will be safe for transfusion ?

(a) O, Rh-
(b) O, Rh+
(c) AB, Rh-
(d) AB, Rh+
1817: Assertion (A)

Photosynthesis and vision are the phenomenon of visible light

Reason (R)

The visible light is absorbed by small particles containing chlorophylls as well as the retina of the eye

(a) if A and R both are correct and R is the correct explanation of A

(b) if A and R both are correct but R is not the correct explanation of A

(c) if A is incorrect but R is correct

(d) if A is correct but R is incorrect
1818: In what sequence are the following obtained from a natural gas well?

1. Natural Gas

2. Water

3. Crude oil

(a) 1, 3, 2

(b) 1, 2, 3

(c) 3, 2, 1

(d) 2, 1, 3
1819: Roman settlement in India is found at

(a) Ujjain

(b) Kshudrakas

(c) Arikmedu

(d) Koshambi
1820: What was the immediate reason for Ahmad Shah Abdali to invade India and fight the Third Battle of Panipat ?

(a) He wanted to avenge the expulsion by Marathas of his viceroy Timur Shah from Lahore

(b) The frustrated governor of Jullundhar Adina Beg Khan invited him to invade Punjab

(c) He wanted to punish Mughal administration for non-payment of the revenues of the Chahar Mahal (Gujarat, Aurangabad, Sialkot and Pasrur)

(d) He wanted to annes all the fertile plains of Punjab up to the borders of Delhi to his kingdom