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Chemistry

Chemistry
Which one is the purest form of carbon

Graphite
Coal
Iron
Diamond

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Chemistry
Williamson's synthesis is widely used in the laboratory preparation of

Esters
Aldehydes
Ethers
Alcohols

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Chemistry
Catalytic converters are generally made from :

Transition metals
Hydrogen
Carbon
Alkaline metals

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Chemistry
Urea is a

Potassium fertilizer
Sodium fertilizer
Phosphatic fertilizer
Nitrogenous fertilizer

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Chemistry
Which of the following kinds of spectroscopy can provide information on the energy difference between the initial and final states rather the energy levels involved in the transition

UV absorption spectroscopy
Infrared absorption spectroscopy
UV photoelectron spectroscopy
Rotational spectroscopy

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Chemistry
Atoms of same element having different mass numbers are called________

Isobars
Isotopes
Isomers
Isotones

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