1856: Which one of the following is a modern tank?

(a) Bhim
(b) Akash
(c) Arjun
(d) Prithvi
1857: A universal donor has the blood group belonging to:

(a) A

(b) B

(c) O

(d) AB
1858: Amit has five friends : 3 girls and 2 boys. Amit's wife also has 5 friends : 3 boys and 2 girls. In how many maximum number of different ways can they invite 2 boys and 2 girls such that two of them are Amit's friends and two are his wife's ?

(A) 46
(B) 38
(C) 58
(D) 24
1859: Which one of the following pairs is not correctly matched?

(a) Islam : Koran

(b) Hinduism : Veda

(c) Shintoism : Analects

(d) Judaism : Torah
1860: Regarding the atom of a chemical element, the magnetic quantum number refers to

(a) orientation

(b) shape

(c) size

(d) spin