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  Question  Asked @ Answers Views     select
 
The element required for solar energy conversion is 1 Beryllium 2 Silicon 3 Tantalum 4 Ultra pure carbon  1  700
Monazite is an ore of 1 Iron 2 Titanium 3 Thorium 4 Zirconium  1  631
Water is a compound because 1 It exists as a solid, a liquid or a gas 2 It contains hydrogen and oxygen 3 It contains two different elements joined by chemical bonds 4 It cannot be split up into simpler substances by chemical means  1  1909
The element nickel is a 1 Magnetic metal 2 Radioactive metal 3 Non magnetic metal 4 Complex element  1  538
Potassium permanganate is used for purifying drinking water, because 1 It is dissolves the impurities of water 2 It is a sterilizing agent 3 It is an oxidizing agent 4 It is a reducing agent  2  2262
Graphite and sillimanite are 1 Refractory minerals 2 Ferrous minerals 3 Base minerals 4 None of these  1  569
The presence of which of the following salts in water causes corrosion in steam boilers? 1 Sodium chloride 2 Magnesium chloride 3 Calcium bicarbonate 4 Potassium bicarbonate  1  618
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  1  1451
Water is a good solvent of ionic salts because 1 It has no colour 2 It has a high boiling point 3 It has a high dipole moment 4 It has a high specific heat  1  911
The hardest substance available on earth is 1 Platinum 2 Coal 3 Diamond 4 Gold FCI   11  10552
Actinides are the elements with atomic numbers from 1 36 to 43 2 89 to 103 3 97 to 114 4 101 to 115  1  644
Which of the following is the best conductor of electricity? 1 Zinc 2 Copper 3 Gold 4 Silver  4  1565
The ratio of pure gold in 18 carat gold is 1 60% 2 75% 3 80% 4 100%  2  2356
The highest grade of coal whose surface is shining and has the highest calorific value, is 1 Bituminous 2 Lignite 3 Anthracite 4 Peat  1  1950
The element found on the surface of the moon is 1 Tin 2 Tungsten 3 Tantalum 4 Titanium RRB  4  3823
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Un-Answered Questions
 
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In HPLC Calibration, On which basis RSD Limit of noise test is fixed (NMT 33.0 % ) 314 Alembic
How can we store plant germplasm for future use? 253  
why silica absorb in mix bed resins in D M plant. 2977 NTPC
what is meant by codan optimisation m rna enrichment? 404 CSIR
Toxin X is released only in mature spores of a single fungus and only when both alleles at a single locus are present. The toxin is never observed when the alleles are together in hyphae or modified hyphae. What division is the fungus found in? 251  
what is purpose of slow,medium,fast sampling in process validation ? 495  
Explain the mechanism of antibacterial action? 263  
Give the cell cycle analysis of transiently transfected cells ? 293  
describe the lewis dot structure of Mg2+? 4243  
How to stock culture of anaerobic bacteria? 389  
when the dao exam will be conducted 218  
how do you prepare 1000ppm solution of cyanide? 569  
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