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(2) 3900A-7600A

Which of the following is a chemical change? 1 Magnetization of iron 2 Melting of ice 3 Burning of sulphur 4 Melting of wax

1 Answers  

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Which of the following is not a compound? 1 Silica 2 Red lead 3 Slaked lime 4 Black lead

1 Answers  

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what are advantages & disadvantages of science?

62 Answers   Reliance,

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is there any instrument to convert mechanical energy into electrical energy

5 Answers  

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In which of the following processes light energy is converted into chemical energy? 1 Respiration 2 Fermentation 3 Photosynthesis 4 Photoresiration

2 Answers  

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List and explain two instances of Correlation Science with Life Situation

0 Answers   Mahatma Gandhi University,

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When was the first american rocket launched?

0 Answers  

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The property of a substance to absorb moisture from the air on exposure is called 1 Osmosis 2 Dessication 3 Efflorescence 4 Deliquescence

3 Answers  

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The pink color of Bayer’s reagent is discharged when acetylene is passed through it. This is due to the formation of 1 Acetic acid 2 Ethylene 3 Water 4 Oxalic acid

2 Answers  

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infra-red rays were first detected by? the intensity level of sound is measured in? the material used for a fuse wire should? radioactivity is a property of? what is the source of electric energy in an artificial satellite? the following is used as a lubricant in heavy machines? supher, bauxite , graphite, phosphorus

2 Answers  

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Water is neither acidic nor alkaline because 1 It cannot accept or donate protons 2 It boils at a high temperature 3 It can dissociate into equal number of hydrogen ions 4 It cannot donate or accept electrons

2 Answers   ACIO,

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Mesons are found in 1 ?-rays 2 Laser beam 3 X-rays 4 Cosmic rays

3 Answers   ABC, Indian Army, JSSC,

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