PVC is obtained by the polymerization of
1 Propene
2 Vinyl chloride
3 Styrene
4 Acetylene
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The combustible material at the tip of a safety match sitck is 1 Sulphur 2 Manganese dioxide 3 Phosphorus 4 Antimony sulphide
Which gas is used for preparation of soda water? 1 Ammonia 2 carbon dioxide 3 Hydrogen 4 Nitric oxide
Which are known as non - luminous irregular nebulae?
A team of u.n scientists visited thumba?
Explain the role of Science for sustainable Development
0 Answers Mahatma Gandhi University,
Which one of the following is the petroleum wax? 1 Bees wax 2 Carnauba wax 3 Paraffin wax 4 Jojoba wax
Which of the following is the best conductor of electricity? 1 Zinc 2 Copper 3 Gold 4 Silver
Which of the following is not a neutral oxide? 1 Carbon monoxide 2 Sulphur dioxide 3 Nitric oxide 4 Water
How many naval staffs can occupy arihant?
Permanent hardness of water may be removed by the addition of 1 Alum 2 Sodium carbonate 3 Lime 4 Potassium permanganate
Papepr is manufactured by 1 Wod and resin 2 Wood, sodium and bleaching powder 3 Wood and bleaching powder 4 Wood, calcium, hydrogen sulphite and resin
The age of most ancient geological formations is estimated by 1 Potassium-argon method 2 Ra-Si method 3 C14method 4 Uranium-lead method