GK Practice Question and Answer
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Q: The primary colours in photography are –
2031 05de492866528fb7f3ab00bba
5de492866528fb7f3ab00bba- 1Red, blue, yellowfalse
- 2Red, yellow, greenfalse
- 3Red, blue, greentrue
- 4Red, green, cyanfalse
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Answer : 3. "Red, blue, green "
Q: Acid rain is mainly a mixture of—
1311 05de4921f80801d48fb7e6f96
5de4921f80801d48fb7e6f96- 1Sulphuric acid and nitric acidtrue
- 2Hexane and methanefalse
- 3Acetic acid and brominefalse
- 4Ascorbic acid and citric acidfalse
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Answer : 1. "Sulphuric acid and nitric acid"
Q: Which lubricant is used for heavy machines?
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5de491b080801d48fb7e6f8d- 1Bauxitefalse
- 2Phosphorusfalse
- 3Graphitetrue
- 4Silicon oilfalse
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Answer : 3. "Graphite "
Q: Which of the following is not a chemical fertilizer?
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5de490ac4a95623fc0786d10- 1Ureafalse
- 2Sodium Sulphatetrue
- 3Super Phosphatefalse
- 4Potassium Nitratefalse
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Answer : 2. "Sodium Sulphate "
Q: Which one of the following is highly dangerous radioactive pollutant ?
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5de48f81848f4a29cf45ae45- 1Phosphorus-32false
- 2Sulphur-35false
- 3Strontium-90true
- 4Calcium-40false
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Answer : 3. "Strontium-90 "
Q: When chlorophyll is burnt which element is obtained?
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5de48f31848f4a29cf45ae3c- 1Cafalse
- 2Nafalse
- 3Mgtrue
- 4Mnfalse
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Answer : 3. "Mg"
Q: The term ‘ecosystem’ was proposed by—
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5de48ec3848f4a29cf45ae33- 1Odumfalse
- 2Tansleytrue
- 3Whitkerfalse
- 4Golifalse
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Answer : 2. "Tansley"
Q: Genes are made by—
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5de48e654a95623fc0786b54- 1Histonesfalse
- 2Lipoproteinsfalse
- 3Hydrocarbonsfalse
- 4Polynucleotidestrue
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Answer : 4. "Polynucleotides"
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