General Science Questions (MCQs) for Competitive Examinations

General Science Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations. These questions are part of GKToday’s 35000+ MCQs Bank Course in GKToday Android App

1. Which iron ore contains the highest percentage of iron content?
[A] Hematite
[B] Siderite
[C] Magnetite
[D] Limonite

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2. The exceptionally low melting point of mercury can be explained on the basis of which of the following explanations?
1. Mercury has completely filled-up atomic orbitals
2. In mercury, the binding energy of outer electrons (towards nucleus) is highest and no electron is available to participate in metallic bond formation
Choose the correct option from the codes given below:
[A] Only 1 is correct
[B] Only 2 is correct
[C] Both 1 & 2 are correct
[D] Neither 1 nor 2 is correct

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3. Who discovered electron?
[A] J. chadwick
[B] Ernest Rutherford
[C] J.J.Thomson
[D] E.Goldstein

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4. The ____ is the stem-like part of the leaf that joins the blade to the stem, is known as:

[A] Vein
[B] Petiole
[C] Stipules
[D] Midrib

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5. Sleeping sickness disease spreads due to which of the following insect?

[A] Bedbugs
[B] Tsetse fly
[C] Louse
[D] Sand fly

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6. In male sharks, Claspers are found attached to
____:
[A] Anal fin
[B] Ventral fin
[C] Pectoral fin
[D] Pelvic fin

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7. One of the best solutions to get rid of non-biodegradable wastes is ____:
[A] Burning
[B] Dumping
[C] Burying
[D] Recycling

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8. Biodegradable wastes can usually be converted into useful substances with the help of ____:
[A] Bacteria
[B] Viruses
[C] Nuclear proteins
[D] Radioactive substances

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9. People with Downs syndrome invariably affected by _____:
[A] Alzheimers disease
[B] Huntingtons disease
[C] Brain haemorrhage
[D] Meningitis

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10. The animals in which the body cavity is absent are known as ____:
[A] Wild
[B] Coelomates
[C] Pseudocoelomates
[D] Acoelomates

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