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Chemistry

Chemistry
The residue left after extracting juice from sugarbeet and sugarcane is called

Whey
Biomass
Molasses
Bagasse

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Chemistry
What is the atomic number of mercury

80
41
63
32

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Chemistry
The method that cannot be used for removing permanent hardness of water is

adding sodium carbonate
adding caustic soda
boiling
distillation

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Chemistry
Number of6.023 × 1020 atoms present in one mole of a gas at STP is

'6.023 × 10–20
6.023 × 1020
'6.023 × 10–23
6.023 × 1023

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

Bacillus subtilis
Saccharomyces cerevisiae
Pseudomonas putida
Escherichia coli

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Chemistry
What happens when a drop of glycerol is added to crushed KMnO4 spread on a paper ?

There is a violent explosion.
There is no reaction.
The paper ignites
There is a crackling sound

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MORE MCQ ON Chemistry

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