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Online General Science Quiz Set No - 29

General Science questions have been taken from previous years question papers of different competitive examinations such SSC CGL, SSC CHSL, CDS, NDA, Bank, State PSC, Railways, MAT, CAT, etc.

281) The metal that is present in Photo Films is:
A) Mercury
B) Platinium
C) Magnesium
D) Silver

282) The metal used in storage batteries is:
A) Iron
B) Copper
C) Lead
D) Zinc

283) The metallic constituents of hard water are:
A) Magnesium, Calcium and tin
B) Iron, tin and calcium
C) Calcium, magnesium and iron
D) Magnesium, tin and iron

284) The method of magnetisation is
A) heating a magnet
B) passing direct current through it
C) passing alternating current through it
D) hammering a magnet

285) The minimum height of a plane mirror to see the full image of a person is equal to?
A) the height of the person
B) half the height of the person
C) one-fourth the height of the person
D) double the height of the person

286) The most abundant element in the earth's crust is:
A) O
B) Al
C) Si
D) Fe

287) The most important ore of Aluminium is:
A) Bauxite
B) Calamine
C) Calcite
D) Galena

288) The most malleable metal is:
A) Silver
B) Gold
C) Aluminium
D) Sodium

289) The most reactive among the halogens is?
A) Fluorine
B) Iodine
C) Chlorine
D) Bromine

290) The motion of the wheels of a bullock-cart while moving on the road is an example of
A) Oscillatory and rotatory motion
B) Oscillatory and translatory motion
C) Translatory and rotatory motion
D) Translatory motion only