Of the various forms of carbon, the one which is used for
adsorption purpose, is
1 Diamond
2 Graphite
3 Coke
4 Wood charcoal
Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of 1 Nitrates 2 Zeolites 3 Sulphontes 4 None of these
What is difference between nanoscience and nanotechnology?
1 Answers GSK GlaxoSmithKline,
Which of the following acids is used for ‘etching glass’? 1 HBrO3 2 H2F2 3 HCIO4 4 HIO4
When an iron nail gets rusted, iron oxide is formed 1 Without any change in the weight of the nail 2 With increase in the weight of the nail 3 With decrease in the weight of the nail 4 None of these
Enriched uranium used in a nuclear reactor is 1 Uranium freed of all impurities 2 Uranium treated with radiation 3 Uranium alloyed with aluminum 4 Uranium with a high percentage of a particular isotope
when u step up the voltage using atransformer ,,,then what about the secondary current will it be increased or decreased ?
Which of the following is not a compound? 1 Silica 2 Red lead 3 Slaked lime 4 Black lead
Potassium nitrate is used in 1 Salt 2 Glass 3 Fertilizer 4 Medicine
wheather lightning will attack a aeroplane during flying if not why
Which of the following fertilizers leaves acidic residue? 1 Urea 2 Ammonium phosphate 3 Ammonium sulphate 4 None of these
whate is the difference b/w aflatoxions&ocharatoxions
When was the indian made rocket “ rohini ” launched from thumba?