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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,

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example for navigation satellite?

1 Answers   ISRO, MPPGENCO,

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Diamond is harder than graphite because of 1 Difference of layers of atoms 2 Tetrahedral structure of diamond 3 Difference of crystalline structures 4 None of these

3 Answers  

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A mixture of salt and sand can be separated by 1 Sublimation 2 Dissolving in water 3 Gravity separation 4 Dry distillation

3 Answers   CISF,

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The rate of chemical reaction does not depend upon 1 Concentration 2 Catalyst 3 Temperature 4 Pressure

1 Answers  

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name all the density all cloth,metals,materials?

0 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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‘Saponification involves the hydrolysis of fats and oils by 1 Water 2 Washing soda 3 Stearic acid 4 Caustic soda

1 Answers  

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What is the Cellular Structure ?

1 Answers  

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Why sun seems to be a red colour while sun-rising and sun- setting?

1 Answers  

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Nuclear fission is caused by the impact of 1 Proton 2 Electron 3 Neutron 4 None of these

4 Answers   Jharkhand Staff Selection Commission JSSC,

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Which of the following is used to coagulate synthetic fibers from solution? 1 Hydrochloric acid 2 Sulphuric acid 3 Nitric acid 4 None of these

1 Answers  

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