Chemistry MCQs with answers Page - 50

Here, you will find a collection of MCQ questions on Chemistry. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. Ethanol containing 5% water is known as:

  • (A) Power alcohol
  • (B) Rectified spirit
  • (C) Absolute alcohol
  • (D) Dilute alcohol

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Q. Which among the given is not a greenhouse gas -

  • (A) Nitric oxide
  • (B) Chlorofluorocarbon
  • (C) Hydrogen
  • (D) Carbon dioxide

A

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Q. Which among the given has highest solubility in ionic solvent?

  • (A) Silver iodide
  • (B) Silver bromide
  • (C) Silver chloride
  • (D) Silver fluoride

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Q. Substance used as an anti - freeze in radiators of automobiles is:

  • (A) Methyl alcohol & H2O
  • (B) Methyl alcohol
  • (C) Ethyl alcohol
  • (D) Ethyl alcohol & H2O

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Q. The coloured discharge tubes for advertisement mainly contain

  • (A) Argon
  • (B) Xenon
  • (C) Neon
  • (D) Helium

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Q. Antacid tablets consist of

  • (A) Hydroxides of sodium, magnesium & aluminium
  • (B) Hydroxides of sodium & aluminium
  • (C) Hydroxides of magnesium & aluminium
  • (D) Hydroxides of magnesium & sodium

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Q. The 1st organic compound synthesised in the laboratory was

  • (A) Lactic acid
  • (B) Glucose
  • (C) Uric acid
  • (D) Urea

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Q. Normally, in the process of osmosis, the net flow of water molecules into or out of the cell depends upon differences in the

  • (A) concentration of water molecules inside and outside the cell
  • (B) concentration of enzymes on either side of the cell membrane
  • (C) rate of molecular motion on either side of the cell membrane
  • (D) none of these

A

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Q. Sodium ions are "pumped" from a region of lower concentration to a region of higher concentration in the nerve cells of humans. This process is an example of

  • (A) hydrolysis
  • (B) passive transport
  • (C) osmosis
  • (D) active transport

A

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Q. The carbon-carbon bond length is shortest in

  • (A) Benzene
  • (B) Ethylene
  • (C) Acetylene
  • (D) Ethane

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