Which is the largest comet?
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PVC is obtained by the polymerization of 1 Propene 2 Vinyl chloride 3 Styrene 4 Acetylene
If today is Saturday what day will it be from 500 days?
Which of the following substances undergoes chemical change on heating? 1 Sodium chloride 2 Silica 3 Lead nitrate 4 Platinum wire
What is the Physiology ?
Photosynthesis is 1 An exothermic process 2 An endothermic process 3 A neutral process 4 A thermostatic process
Which of the following is used as a moderation in nuclear reactor? 1 Ordinary water 2 Radium 3 Thorium 4 Graphite
Carbon, diamond and graphite are together called 1 Isomers 2 Allotropes 3 Isomorphs 4 Isotopes
The rate of chemical reaction does not depend upon 1 Concentration 2 Catalyst 3 Temperature 4 Pressure
What is one light second?
Which of the following gases is obtained by the reaction of copper with dilute nitric acid is 1 NO2 2 N2O5 3 O2 4 NO
According to Dalton’s atomic theory, the smallest particle which can exist independently is 1 An atom 2 A molecule 3 A cation 4 An anion
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