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Chemistry

Chemistry
The antiseptic compound present in dettol is

Cresol
Iodine
Biothional
Enloroxylenol

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Chemistry
The length of double bond is _______ than single bond

None of these
Longer
Shorter
Of same lenght

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Chemistry
The ionic radii of N3-, O2-, F- and Na+ follows the order

Na+ > O2- > N3- > F-
N3- > O2- > F- > Na+
O2- > F- > Na+ > N3-
N3- > Na+ > O2- > F-

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Chemistry
The green colour seen in firework displays is due to the chloride salt of :

Sodium
Strontium
Barium
Calcium

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Chemistry
Which of the following chemicals is used in photography ?

Sodium chloride
Silver bromide
Potassium nitrate
Aluminium hydroxide

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Chemistry
Which one of the following statements is not correct? Vulcanisation of rubber makes it

Withstand higher temperatures
Chemical resistant
Soft and flexible
Strong and hard

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