Ice is packed in saw dust because
saw dust will not get melted easily
saw dust is poor conductor of heat
saw dust does not stick to the ice
saw dust is a good conductor of heat
Ethanol containing 5% water is known as
rectified spirit
absolute alcohol
dilute alcohol
power alcohol
Rusting is ..............
electrolysis
oxidation
redox reaction (Oxidation and Reduction)
reduction
Which amongst the following is not a Cation?
Aluminium ion
Copper ion
Sulphate ion
Zinc ion
Oxide of which of the following will turn red litmus blue?
Magnesium
Phosphorus
Sulphur
Carbon
A.
Magnesium
PET is a very familiar form of ............... It is used for making bottles.
nylon
acrylic
polyester
rayon
Which of the following gases is heavier than oxygen?
Carbon dioxide
Ammonia
Methane
Helium
Process of gaining electrons is known as .............
Oxidation
Reduction
Radiation
Both Oxidation and Reduction