Sucrose content in the raw juice extracted from sugar cane is about _________________ percent?
(A) 1 – 2
(B) 15 – 20
(C) 50 – 60
(D) 80 – 85
Builders are added in soap to act as___________________?
(A) Cleaning power booster
(B) Anti-redeposition agent
(C) Corrosion inhibitor
(D) Fabric brightener
Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda ?
(A) High cost of mercury
(B) High specific gravity of mercury
(C) Non-availability of high purity mercury
(D) Pollution of water stream by mercury
Kaolin is a/an _____________________?
(A) Refractory material
(B) Synthetic resin
(C) Artificial abrasive
(D) Blue pigment
Phosphoric acid is prepared from_____________________?
(A) Cryolite
(B) Chalcopyrite
(C) Rock phosphate
(D) None of these
Ceramics are produced from silicates or clayish materials: Which of the following is not a ceramic material ?
(A) Slag cement
(B) Glasses
(C) Porcelain/Potteries
(D) Teflon
Phosphate rock is a raw material for the manufacture of____________________?
(A) Phosphoric acid
(B) Phosphorous
(C) Superphosphates
(D) All A ,
Which of the following is the second major component of cement ?
(A) Al2O3
(B) SiO2
(C) CaO
(D) Fe2O3
Pick out the endothermic reaction out of the following ?
(A) C+ ½O2 = CO
(B) CO + 3H2 = CH4 + H2O
(C) CaCO3 = CaO + CO2
(D) CO + ½O2 = CO2
The terminology ‘BTX’ used in coal tar distillation industry refers to___________________?
(A) Benzol-toluol-xylol
(B) Benzol-toluene-xylene
(C) Benzene-toluol-xylol
(D) Benzene-toluene-xylene