591UPSC1996General ScienceEnglish
The alpha particle carries two positive charges. Its mass is very nearly equal to that of
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Correct option: B — An atom of helium
Free · past papers · answers included
General Science MCQ practice free online · page 60
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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- 592RPSC1996General ScienceEnglish
The Nucleus of Helium has
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Correct option: C — Two protons and two neutrons
- 593BPSC2002General ScienceEnglish
Which of the following carries a negative charge?
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Correct option: C — Beta particles
- 594UPSC2001General ScienceEnglish
In an atom, the order of filling up of the orbitals is governed by
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Correct option: A — Aufbau’s principle
- 595UPSC2003General ScienceEnglish
Regarding the atom of a chemical element, the magnetic quantum number refers to
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Correct option: A — Orientation
- 596BPSC1999General ScienceEnglish
What is the mass number of an element, the atom of which contains two protons, two neutrons and two electrons?
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Correct option: B — 4
- 597UPPSC2009General ScienceEnglish
The atoms, in which the number of protons is same but the number of neutrons is different, are known as
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Correct option: D — Isotopes
- 598UPPSC2003General ScienceEnglish
Radioactivity was discovered by
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Correct option: B — Becquerel
- 599UPPSC2001General ScienceEnglish
Isotopes are those atoms of the same element which have
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Correct option: B — Atomic mass is different but atomic number is same
- 600BPSC1996General ScienceEnglish
Isotopes is that nuclei of atomic nucleus in which
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Correct option: B — Number of protons is same but number of neutrons is different
General Science practice — common questions
Page 60 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".