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Chemistry

Chemistry
A polymeric substance used to make parachute is

Terylene
Cotton
Rayon
Viscose

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Chemistry
The atmospheric gas that is mainly responsible for Green House effect :

Carbondioxide
Ozone
Nitrogen
Oxygen

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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

Infrared absorption spectroscopy
Rotational spectroscopy
UV absorption spectroscopy
UV photoelectron spectroscopy

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Chemistry
Saline soil contains

None of these
Hard rocks
Lot of moisture
High concentration of salt

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Chemistry
Which of the following is not present in RNA

Thymine
Ribose
Phosphate
Uracil

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Chemistry
Which of the following electrodes is used in strongly alkaline solution

Silver - silver chloride electrode
Mercury - mercurous sulphate electrode
Mercury - mercurous chloride electrode
Mercury - mercuric oxide electrode

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