A. Air
B. Water
C. Nitrogen
D. Helium
Related Mcqs:
- The most reactive allotropic form of phosphorus is __________________ phosphorus?
A. Red
B. Yellow
C. Violet
D. Black - Potassium is kept & transported under ___________________ ?
A. Water
B. Liquid ammonia
C. Kerosene oil
D. Alcohol - Yellow glycerine is made into white, using____________________?
A. Activated carbon
B. Diatomaceous earth
C. Bauxite
D. Bentonite - Which of the following is an yellow pigment ?
A. Titanium dioxide
B. Ferrous sulphate
C. Lead chromates
D. Zinc sulphides - ________________ acid is the main constituent of cotton seed oil ?
A. Acetic
B. Linoleic
C. Palmitic
D. Oleic - The most economical pulp for the production of newsprint would be the _____________________ pulp?
A. Ground-wood
B. Sulphate
C. Sulphite
D. Semi-chemical - Fermentator temperature during production of alcohol from molasses is around ______________ °C?
A. 5
B. 30
C. 130
D. 300 - Pick out the wrong statement ?
A. Kraft method of pulp manufacture can process all types of fibrous raw materials
B. Digestion time for bagasse is less than that for wood base materials
C. Both temperature and pressure in the digestor is less in case of the sulphite method as
compared to that in the sulphate method
D. None of these - Roasting of metallurgical ores is done mainly to ___________________?
A. Dehydrate it
B. Sinter the ore
C. Remove CO2 & H2O
D. Remove arsenic & sulphur - RDX (an explosive), which is more sensitive but less toxic than TNT, is chemically____________________?
A. Cyclo trimethylene trinitramine
B. Trinitro resorcinol
C. Cyclo tetramethylene tetranitramine
D. Trinitrobenzene
