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. What is the common name of ‘Ca(ClO)2’?
[A] Baking Soda
[B] Bleaching Powder
[C] Washing Soda
[D] Baking Powder

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3. Which of the following protein is found in nails?

[A] Keratin
[B] Histone
[C] Actin
[D] Elastin

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4. Symbiotic Bacteria responsible for the fixation of atmospheric nitrogen are present in ____:
[A] Peas
[B] Oats
[C] Corn
[D] Wheat

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5. Protein part of enzyme is known as ____:
[A] Isoenzyme
[B] Holoenzyme
[C] Apoenzyme
[D] All of the above

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6. Seed dormancy is regulated by ____:
[A] Abscisic acid
[B] Indole acetic acid
[C] Ethylene
[D] Gibberellic acid

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7. Which of the following plant hormones are incorrectly paired?
[A] Cytokinins- senescence
[B] Abscisic acid- transpiration
[C] Auxins- apical dominance
[D] Gibberlins- bud and seed dormancy

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8. Growing agricultural crops between rows of planted trees is known as ____:
[A] Jhum
[B] Agro forestry
[C] Social forestry
[D] Taungya system

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9. Which of the following is the smallest bird?
[A] Parrot
[B] Pigeon
[C] Hummingbird
[D] House sparrow

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10. A molecule in plants comparable to haemoglobin in animals is ____:
[A] Carotene
[B] Chlorophyll
[C] Cellulose
[D] Cytochrome

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