General Science Practice Question and Answer
8 Q: Litmus is obtained from-
919 063b6c63d61d62119f1a1daaa
63b6c63d61d62119f1a1daaa- 1from bacteriafalse
- 2from algaefalse
- 3from fungusfalse
- 4from lichentrue
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Answer : 4. "from lichen"
Explanation :
Litmus is obtained from lichens, which are composite organisms formed from a symbiotic relationship between a fungus and an alga or cyanobacterium. Litmus is a water-soluble mixture of different dyes extracted from lichens, primarily Roccella tinctoria and Roccella fuciformis. It is commonly used as a pH indicator in laboratories to test the acidity or alkalinity of solutions.
Q: The Drone in honey-bee are
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6389c853c878936066e7b952- 1Fertile maletrue
- 2Fertile femalefalse
- 3Sterile malefalse
- 4Sterile femalefalse
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Answer : 1. "Fertile male "
Q: Which of the following is used as a coolant in nuclear reactors?
918 0606c2375c476de27c7b19925
606c2375c476de27c7b19925- 1calciumfalse
- 2Graphitefalse
- 3Heavy watertrue
- 4Cadmiumfalse
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Answer : 3. "Heavy water"
Q: Which food group is richest in energy in terms of kCal per gram?
912 06284e527d84556078ac79217
6284e527d84556078ac79217- 1Cereal , Millet and Pulsesfalse
- 2Vegetables and Fruitsfalse
- 3Milk and Milk products , Egg , Meat and Fishesfalse
- 4Oil & Fats and Nuts & Oilseedstrue
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Answer : 4. "Oil & Fats and Nuts & Oilseeds "
Q: occurs in the human eye?
909 063b56c823d35cd0dee94b080
63b56c823d35cd0dee94b080- 1concave lensfalse
- 2convex mirrorfalse
- 3convex lenstrue
- 4concave mirrorfalse
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Answer : 3. "convex lens"
Explanation :
convex lenses are used in the human eye to help focus light onto the retina, allowing us to see clearly. The natural lens in the human eye is flexible and can change its shape, allowing it to adjust the focal length and focus on objects at different distances. This process is called accommodation and is essential for clear vision.
Q: What is the common characteristic of the elements of the same group in the periodic table?
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605d827047357f07e98ea7cd- 1Electrons in outer most shelltrue
- 2Total number of electronsfalse
- 3Total number of electronsfalse
- 4Atomic weightfalse
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Answer : 1. "Electrons in outer most shell"
Q: Which among the following is not a unit of distance?
906 0605c500ac5cd4764959fa349
605c500ac5cd4764959fa349- 1Light yearfalse
- 2Longsectrue
- 3Astronomical unitfalse
- 4Parsecfalse
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Answer : 2. "Longsec"
Q: Which one of the following correctly describes AGNI?
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651eaf6e0adf95da394e6c5e- 1A fighter planefalse
- 2A versatile tankfalse
- 3A long-range missiletrue
- 4A long-range gunfalse
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Answer : 3. "A long-range missile "
Explanation :
The Agni missile is a family of medium to intercontinental range ballistic missiles developed by India, named after one of the five elements of nature. The first missile of the series, Agni-I was developed under the Integrated Guided Missile Development Programme and tested 1991.