The property of a substance to absorb moisture from the air
on exposure is called
1 Osmosis
2 Dessication
3 Efflorescence
4 Deliquescence
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An element that does not occur in nature but can be produced artificially is 1 Thorium 2 Radium 3 Plutonium 4 Uranium
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what is center of gravity?
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What do you understand by nutritive constituents of food ?
Old-written material, which cannot be read easily, can be read by 1 Cosmic rays 2 Ultraviolet rays 3 Infra red rays 4 None of these
Which of the following acids is used for ‘etching glass’? 1 HBrO3 2 H2F2 3 HCIO4 4 HIO4
What are the points to be born in mind while eating to avoid disease?
The gas usually filled in the eletric h\bulb is 1 Hydrogen 2 Oxygen 3 Nitrogen 4 Carbon dioxide
Write two characteristics of Science.
0 Answers Mahatma Gandhi University,
Superphosphate fertilizer is prepared by the reaction between 1 Calcium phosphate and Sulphuric hydroxide 2 Sodium phosphate and Sodium nitrate 3 Magnesium phosphate and Sodium nitrate 4 Sodium sulphate and Phosphoric acid
2 Answers Central Police Forces, Odisha Police,
meron po bang minerals ang astoroids po ba?