A mixture of iron filings and sand can be separated by
1 Heating
2 Sublimation
3 Hand picking
4 Magnetic separation
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Name the indian states in which river ganga flows?
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hai i am koti reddy panta.studying 3rd mca.i failed in my degree. shell i consider those subjects as backlogs
Which of the following is a chemical change? 1 Oxidation 2 Reduction 3 Sublimation 4 Decomposition
In which year, atmospheric observations using balloons started?
Rubber is coagulated from latex by adding 1 Hydrochloric acid 2 Acetic acid 3 Sulphuric acid 4 Carbonic acid
The neutral atom’s two isotopes differ in the number of 1 Electron shells 2 Protons 3 Valence electrons 4 Neutrons
Which isotope of Uranium is capable of sustaining chain reaction ?
Bleaching powder is made from 1 Sulphur dioxide and gypsum 2 Chlorine and charcoal 3 Soda ash and lilme 4 Lime and chlorine
what are disadvantages of interrupt and exception?
what are the advantages and disadvantages of rational knowledge?
The combustible material at the tip of a safety match sitck is 1 Sulphur 2 Manganese dioxide 3 Phosphorus 4 Antimony sulphide
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
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