Portland cement consists mainly of__________________?
Portland cement consists mainly of__________________?
A. CaO & SiO2
B. SiO2 & Al2O3
C. CaO & Al2O3
D. CaO & Fe2O3
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Dense soda ash used in the manufacture of glass, is chemically represented by__________________?
Dense soda ash used in the manufacture of glass, is chemically represented by__________________?A. Na2CO3
B. Na2CO3.10H2O
C. Na2CO3.H2O
D. Na2HCO3Coloured glass is obtained by mixing of colored salts. Addition of ___________________ oxide is done to impart greenish blue color to the glass?
Coloured glass is obtained by mixing of colored salts. Addition of ___________________ oxide is done to impart greenish blue color to the glass?A. Chromium
B. Arsenic
C. Copper
D. ManganeseThe terminology ‘BTX’ used in coal tar distillation industry refers to___________________?
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-xyleneBrackish water which contains mostly dissolved salt, can be purified by the __________ process.
Question: Brackish water which contains mostly dissolved salt, can be purified by the __________ process.
[A].reverse osmosis [B].
sand filter [C].
lime soda [D].
permutit Answer: Option A
Explanation:
No answer description available for this question.
Fermentation is adversely affected by the
Question: Fermentation is adversely affected by the
[A].presence of air. [B].
absence of air. [C].
high concentration. [D].
presence of ammonium salts. Answer: Option C
Explanation:
No answer description available for this question.
Which of the following is not present in bagasse fibre ?
Which of the following is not present in bagasse fibre ?A. Cellulose
B. Lignin
C. Pentogens
D. None of these