General Science Practice Question and Answer
8 Q: Which one of the following is not correctly matched?
866 062e7ce0defd77421d956ed23
62e7ce0defd77421d956ed23- 1DPT - Vaccinefalse
- 2DOTS - Tuberculosisfalse
- 3Adrenaline - Hormonefalse
- 4AB+ Blood group - Universal Donortrue
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Answer : 4. "AB+ Blood group - Universal Donor "
Explanation :
All of the following are matched.
(A) DPT - Vaccine
(B) DOTS - Tuberculosis
(C) Adrenaline - Hormone
Q: The non-metal used in the vulcanization of rubber is ____________.
864 0639c8701c0ba0122eca27335
639c8701c0ba0122eca27335- 1phosphorusfalse
- 2sulphurtrue
- 3graphitefalse
- 4iodinefalse
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Answer : 2. "sulphur"
Q: The connecting link between amphibians and reptiles is -
859 063bd29283d35cd0deed42fd2
63bd29283d35cd0deed42fd2- 1Fishfalse
- 2Prototheriafalse
- 3Peripatusfalse
- 4Seymouriatrue
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Answer : 4. "Seymouria"
Q: Which of the following gas causes explosion in coal mines?
858 06438fc7e2b960e1a41b0a380
6438fc7e2b960e1a41b0a380- 1Carbon dioxidefalse
- 2Nitrogenfalse
- 3Butanefalse
- 4Methanetrue
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Answer : 4. "Methane"
Explanation :
Methane is the gas that can cause explosions in coal mines. Methane is a highly flammable gas, and when it accumulates in high concentrations in confined spaces like coal mines, it poses a significant risk. Methane explosions can occur if the gas comes into contact with an ignition source, such as a spark or flame, leading to a dangerous explosion. That's why proper ventilation and safety measures are crucial in coal mines to prevent methane buildup and potential explosions.
Q: Radio waves are reflected from which part of the atmosphere-
856 161b1dcf545c0db34860a30db
61b1dcf545c0db34860a30db- 1Ionospheretrue
- 2Stratospherefalse
- 3Mesospherefalse
- 4None of thesefalse
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Answer : 1. "Ionosphere"
Q: Which tissue helps in wound healing?
856 063b6a6a328c33f137b3ad215
63b6a6a328c33f137b3ad215- 1nervous tissuefalse
- 2epithelial tissuetrue
- 3muscle tissuefalse
- 4connective tissuefalse
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Answer : 2. "epithelial tissue"
Explanation :
Epithelial tissue plays a crucial role in wound healing. When the skin is wounded, epithelial cells at the edges of the wound multiply and migrate to cover the wound, forming a protective layer. This process is essential for the initial sealing of the wound and is one of the early stages in the overall wound healing process. Epithelial tissue helps in closing the wound and restoring the skin's integrity.
Q: Which one of the following metal is used with iron to make it rust free?
855 061d6b2e65351126dae2669cc
61d6b2e65351126dae2669cc- 1Chromiumtrue
- 2Tinfalse
- 3Alluminiumfalse
- 4Carbonfalse
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Answer : 1. "Chromium"
Q: By what metabolic process in the kitchen can you make food like curd, paneer and sauerkraut?
855 0644125162d621da116a30840
644125162d621da116a30840- 1Pasteurisationfalse
- 2Fermentationtrue
- 3Condensationfalse
- 4Steamingfalse
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Answer : 2. "Fermentation"
Explanation :
Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes. In biochemistry, it is narrowly defined as the extraction of energy from carbohydrates in the absence of oxygen.

