A. 0.6
B. 1.2
C. 2.2
D. 3.8
Related Mcqs:
- Production of one ton of dry paper pulp requires about ___________________ tons of bamboo or wood?
A. 1
B. 2.5
C. 5
D. 10 - Commercial production of soda ash by Solvay process requires limestone, ___________________ as raw materials?
A. Coke and sand
B. Brine and coal
C. Coke and caustic soda
D. None of these - Commercial production of calcium carbide requires limestone and __________________ as raw materials?
A. Coke
B. Sand
C. Soda ash
D. Fuel oil - Fusion of limestone and ______________ produces high alumina cement?
A. Sand
B. Bauxite
C. Quicklime
D. Calcite - The compressive strength of cement should not be less than about 110Kg/cm2 after three days & not less than 170Kg/cm2 after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about ________________ cm2/gm?
A. 800
B. 1600
C. 4000
D. 8500 - Industrial production of chloroform requires acetone and_____________________?
A. Phosgene
B. Calcium hypochlorite
C. Chlorine
D. Ammonium chloride - Cement setting under water employs a/an _______________ process ?
A. Hydration
B. Decomposition
C. Oxidation
D. Reduction - Calcination of limestone is not done in a ______________ kiln for producing lime ?
A. Vertical shaft
B. Rotary
C. Fluidised bed
D. Fixed bed - Main constituent of limestone is____________________?
A. CaCO3
B. MgCO3
C. Na2CO3
D. CaSO4 - Commercial production of Vanaspati is done by _______________ of edible vegetable oils ?
A. Hydrogenation
B. Oxidation
C. Hydrolysis
D. Hydrocracking
