Chromium
Tungsten
Iron
Nickel
Which among the given elements is not radio-active
Which among the given elements is obtained from sea weeds -
Which among the given features are common in silver fish, crab, cockroach, honey bees?
Which among the given fibres catches fire least
Which among the given gases is mixed with oxygen for breathing by divers in aqualungs -
Which among the given gases is present under pressure in soft drinks
Which among the given has got more heat capacity
Which among the given has Vitamin C -
Which among the given illustrations is not based on the principle of pressure?
Which among the given in automobile exhaust can cause cancer
