Which of the following materials are used for preparing
blur-black ink?
1 Gallic acid
2 Tannic acid
3 Ferrous sulphate
4 All of these
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difference between typewriter and computer?
The average salinity of sea water is 1 2% 2 2.5% 3 3% 4 3.5%
In fireworks, the green flame is produced because of 1 Mercury 2 Sodium 3 Potassium 4 Barium
What is the Respiration ?
What are different constituents of food? Explain
14 Answers College School Exams Tests, DHMCT, HCL,
The wavelength of X-ray is of order of 1 1 cm 2 1m 3 1 Angstrom 4 10 micron
we know in mathematics that a matrix is an arrangement (array) of different elements , memebers . Then, how does the movie "Matrix" relate with this concept. In movie "Matrix" we have seen that it shown a war between machines & humans. And we know to operate machines we need code like 0 1 & 1 0 . How ? explain ?
The rate of chemical reaction does not depend upon 1 Concentration 2 Catalyst 3 Temperature 4 Pressure
NO OF PLANT IN ONGC
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 of the following is not an isotope of hydrogen? 1 Protium 2 Yitrium 3 Deuterium 4 Tritium
Which of the following is a chemical change? 1 Magnetization of iron 2 Melting of ice 3 Burning of sulphur 4 Melting of wax