(28)Formic acid can easily be identified by its :
(a) Repelling smell
(b) Pungent smell
(c) Bad smell
(d)Sweet smell
(29)Acid rain is caused due to pollution of atmosphere by :
(a) None of these
(b) Oxides of nitrogen and phosphorous
(c) Oxides of nitrogen and sulphur
(d) Oxides of carbon and nitrogen
(30)The lift of an aeroplane is based on :
(a) Coulomb’s law
(b) Law of gravitation
(c) Bernoulli’s principle
(d) Toricellis theorem
(31)When was the first Battle of Panipat fought ?
(a) 1857 A.D.
(b) 1761 A.D.
(c) 1556 A.D.
(d)1526 A.D.
(32)Which of the following state does not share its border with Pakistan :
(a) Madhya Pradesh
(b) Gujarat
(c) Rajasthan
(d)Jammu and Kashmir
(33)Biggest Island in the world is :
(a) Japan
(b) Nicobar
(c) Lakshadweep
(d)Greenland
(34)In personal computers the CPU and other devices are mounted on a single board called :
(a) Connection board
(b) Bread board
(c) Circuit board
(d)Mother board
(35)Which of the following Rivers of India does not originate from the Western Ghats ?
(a) Krishna
(b) Bhadra
(c) Cauveri
(d)Mahanadi
(36)Cocaine is :
(a) Nerve impulse initiator
(b) Nerve stimulant
(c) Nerve initiator
(d)Nerve depressant