When was the second and third experimental explosion conducted?
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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
Which among the following is a positively charged particle emitted by a radioactive element? 1 Alpha ray 2 Beta ray 3 Gamma ray 4 Cathode ray
What is blood ? Describe its functions in the human body ?
In modern science, what is 'fourth dimension'?
The combustible material at the tip of a safety match sitck is 1 Sulphur 2 Manganese dioxide 3 Phosphorus 4 Antimony sulphide
why our head's weight not feel our body?
The country helped in arihant’s built?
Photosynthesis is 1 An exothermic process 2 An endothermic process 3 A neutral process 4 A thermostatic process
When did india conduct three under ground nuclear tests?
the colour of a star is an indication of its?
Which of the following acids is used for ‘etching glass’? 1 HBrO3 2 H2F2 3 HCIO4 4 HIO4
Which scientist made detailed study on novae?