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Chemistry

Chemistry
Chemical name of vinegar is

Acetone
Formaldehyde
Acetic acid
Ethanol

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Chemistry
Which among the following stage is suitable indicator when solution of sodium carbonate is mixed with sulphuric acid ?

Methylene blue
Phenolphthaline
Methyl orange
Methyl red

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Chemistry
Which of the following is not a method of preparing oxygen?

Fractional distillation of liquid air
Decomposition of potassium permanganate
Decomposition of manganese dioxide
Electrolysis of water

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Chemistry
Which of the toxic heavy metals is found in modern tannery industries ?

Lead
Zinc
Nickel
Chromium

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Chemistry
Synthetic detergents are made from

Sodium salt of benzene carboxylic acid
Sodium stearate
Sodium palmitate
Sodium salt of benzene sulphonic acid

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

Saccharomyces cerevisiae
Bacillus subtilis
Pseudomonas putida
Escherichia coli

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MORE MCQ ON Chemistry

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