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- 1. Multiple Choice
solid converted directly into gas is called
freezing
sublimation
evoporation
melting
- 2. Multiple Choice
who described fermentation process
louis pasteur
john willington
thomos alva edison
williams maverick
- 3. Multiple Choice
The chemical change is...............
water to clouds
growth of tree
cow dung to bio gas
ice cream to molten ice cream
- 4. Open Ended
explain about periodic change and non- periodic change
- 5. Multiple Choice
Water freezes and melts at 0°C. Melting point is what kind of property?
chemical
colligative
extensive
physical
- 6. Multiple ChoiceProtons are positively chargedTrueFalse
- 7. Fill in the Blank
H2O + CO2 H2CO3
The equation above is showing which chemical process? - 8. Multiple Choice
Which of the following statements are correct?
Carbocation is the electrophillic species which can undergo 1,2-H and 1,2- R-group shift to attain stability.
Kharasch effect is also known as Anti-Markovnikov's rule.
Peroxides mostly generates free radicals as reactive intermediates.
Carbocation is nucleophillic in nature and undergo 1,2-H and 1,2- R-group shift to attain stability.
- 9. Fill in the Blank
Molecules with an atomicity of 1 are known as ______.
- 10. Multiple Choice
Proton was discovered by
Ernest rutherford
Niels Bohr
- Answer choicesTagsAnswer choicesTags