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Chemistry

Chemistry
Which of the following is the petroleum wax ?

Jojoba wax
Paraffin wax
Bees wax
Carnauba wax

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Chemistry
In galvanization, iron is coated with

Copper
Zinc
Tin
Nickel

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Chemistry
Which colour is produce by Arsenic during flame test

Crimson
Green
Red
Blue

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Chemistry
Sea weeds are important source of

Bromine
Iodine
Chlorine
Iron

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Chemistry
One property of ammonia is

Its aqueous solution turns red litmus blue
It is a odourless gas
It is insoluble in water
It is a yellowish gas

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Chemistry
The new strain of bacteria produced by biotechnology in alcohol industry is

Escherichia coli
Bacillus subtilis
Saccharomyces cerevisiae
Pseudomonas putida

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