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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  699
Monazite is an ore of 1 Iron 2 Titanium 3 Thorium 4 Zirconium  1  629
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  2261
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  910
The hardest substance available on earth is 1 Platinum 2 Coal 3 Diamond 4 Gold FCI   11  10549
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  1564
The ratio of pure gold in 18 carat gold is 1 60% 2 75% 3 80% 4 100%  2  2354
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  1949
The element found on the surface of the moon is 1 Tin 2 Tungsten 3 Tantalum 4 Titanium RRB  4  3821
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Un-Answered Questions
 
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Is LOD and LOQ values differ for different substrat (eg milk, tissue, egg etc.) for same compound (eg pesticide flumethrin)in same instrument(eg GC)? 347 Pharmaceutical
What is a proteic unit? 429 Granules-India
Tell us about a situation in which you took the extra step for a patient. 847 Claris-Lifesciences
0.1 atom gram of the unknown element( X)reacts with 2.4 gram of O2 to produce the oxid product . can you tell us, what is the oxid formula ? a) XO b)X2O3 c)XO2 D) X2O4 245 Ajanta
what is difference between temporary change control and deviation 129  
how do you prepare 1000ppm solution of cyanide? 569  
How to Measure nitrite from LPS-activated RAW264.7 cells ? 350  
Define perl and clustalW problem? 388 Wipro
What is the difference between Phospholipids and phosphosphingosides? 655  
In HPLC Chromatographic separation Resolution equation is Rs = 1.18 (tR2 –tR1)/wh1+Wh2, Where, tR2 and tR1 is run time of eluent ratios of the distances from the point of application to the centers of the spots and the distance travelled by the solvent front from the point of application (retardation factor), and Wh1and Wh2 , is peak width of at half height. What is 1.18 ? 458  
what is the importence and role of LCMS and LCMS/MS and their applications? which type of compounds are analysis by lcms? 530 GVK
What factors can change the pKa value of an amino acid residue, and in which direction? 694  
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