771BPSC1999General ScienceEnglish
Which of the following gas is used as tear gas?
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Correct option: C — NH₃
Free · past papers · answers included
General Science MCQ practice free online · page 78
Questions from RRB, NTPC, Group D and JE past papers. Tap an option to check it instantly — every question shows the correct answer, and most carry the explanation the paper gave.
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- 772JPSC2016General ScienceEnglish
The foul smell of dead fish is due to the compound
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Correct option: A — Amino compounds
- 773JPSC2003General ScienceEnglish
Which of the following remains in a solid state at normal temperature?
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Correct option: C — Iodine
- 774JPSC2013General ScienceEnglish
Which of the following is not optically active?
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Correct option: A — Glycine
- 775UPSC1997General ScienceEnglish
The most reactive among the Halogens is
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Correct option: A — Fluorine
- 776RPSC2012General ScienceEnglish
The halogen being used as analgesic is
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Correct option: B — Bromine
- 777UKPSC2005General ScienceEnglish
Which has is filled at low pressure in a tube light?
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Correct option: B — Neon and Mercury vapour
- 778UPPSC2009General ScienceEnglish
Tubelight is filled with
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Correct option: D — Both (B) and (C)
- 779HPSC2017General ScienceEnglish
A solution turns red litmus blue. The pH of solution is
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Correct option: D — None of these
- 780BPSC1994General ScienceEnglish
Which acid is considered as a basic chemical in Industry?
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Correct option: C — H₂SO₄
General Science practice — common questions
Page 78 of this set has 10 questions on it.
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Where do these General Science MCQs come from?
They are taken from official past papers of Indian government recruitment exams such as RRB NTPC, RRB Group D and RRB JE, and each question keeps a reference to the exam it appeared in.
Are the questions available in Hindi?
Yes. Many papers are set in both languages, so a large share of these questions are available in Hindi. Use the language filter at the top of the page.
Do the questions show answers and explanations?
Every question shows the correct option. Where the source paper included a worked solution, the explanation is shown under "Show answer".