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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
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Write two characteristics of Science.
0 Answers Mahatma Gandhi University,
Which is the first atomic submarine of india?
The process by which an organic compound breaks down into simpler compounds on heating to high temperature is known as 1 Armatisation 2 Polymerization 3 Pyrolysis 4 Reduction
Describe the evolution of science and its impact on society
0 Answers Mahatma Gandhi University,
The major ingredient of leather is 1 Carbohydrate 2 Collagen 3 Polymer 4 Nucleic acid
Which are the important pulsating nebulae?
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
Permanent hardness of water may be removed by the addition of 1 Alum 2 Sodium carbonate 3 Lime 4 Potassium permanganate
What are the points to be born in mind while eating to avoid disease?
Which of the following is a chemical change? 1 Magnetization of iron 2 Melting of ice 3 Burning of sulphur 4 Melting of wax
a private address 172.116.0.0 will borrow ? bits from the HOST to give one 120 subnets - range = ?
An atom of an element with mass number 23 and atomic number 11 will have 1 11 neutrons, 12 protons and 11 electrons 2 11 protons, 12 neutrons and 11 electrons 3 11 neutrons, 11 protons and 12 electrons 4 23 protons and 11 electrons
Biological Sciences 
