Hydrazine (N2H4) is used mainly as a/an
Explosive
Rocket fuel
Detergents additive
None of these
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- Bleaching action of bleaching powder is due to its __________ properties.
- Carbon content of pitch (residue of coal tar distillation) is around __________ percent.
- Chloramines are used in water treatment for
- Sea weeds are an important source of
- The manufacture of Kraft pulp is done by a/an __________ process.
- High temperature carbonisation of coal takes place at __________ °C.
- Salt cake is chemically represented by
- Terylene is
- Hard water
- Economics of 'Solvay Process' depends upon the efficiency of
- Lurgi coal gasifier is a pressurised __________ bed reactor.
- Varnish does not contain
- Most widely and commonly used coagulant for the removal of suspended impurities in water is
- In the manufacture of viscose rayon, the raw material used industrially is
- Vanillin is a type of
- Essential oils are usually obtained using
- The enzyme which converts starch into the disaccharides maltose is
- Bio-degradable detergents
- White phosphorous is stored under water, because
- Starting raw material for the manufacture of Maleic anhydride is
- Cumene (isopropyl benzene) is made by
- Commercially ethylene is produced from naphtha by
- Pick out the wrong statement.
- A substance produced by a living organism and capable of anti-microbial activity is called a/an
- Which of the following coals has the highest calorific value?
- Sea water contains about __________ ppm of bromine.
- Free alkali in a toilet soap is __________ that in a laundry shop.
- Oxidation of SO2 to SO3 is favoured by
- Oil is a/an
- Which of the following impurities in feed water for high pressure boiler is the most detrimental?