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Chemistry

Chemistry
DDT and BHC may act as

None of these
Carcinogens
Allergens
Asthematic agents

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Chemistry
Which among the following elements is found in maximum percentage in the human body ?

Hydrogen
Nitrozen
Oxyzen
Carbon

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Chemistry
When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy siate, they emit light, which we can observe in

Emission spectra
Raman spectra
Absorption spectra
Fluorescence

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Chemistry
Stainless steel is an alloy of

Carbon and iron
Chromium, carbon and iron
Chromium and iron
Chromium and carbon

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Chemistry
What is a Bakelite ?

Solution
Polymer
Base
Acid

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Chemistry
Two elements which can form a large number of compounds are

Carbon and Nitrogen
Carbon and Sulphur
Carbon and Hydrogen
Carbon and Oxygen

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