Related Questions

5% Sodium carbonate solution এর মোলারিটি কত?
A 0.88 M
B 0.98 M
C 0.47 M
D 0.74 M
Sodium Carbonate is commonly known as
A Baking Soda
B Washing Soda
C Caustic Soda
D Caustic Potash
Which among the following stage is suitable indicator when solution of sodium carbonate is mixed with sulphuric acid ?
A Methylene blue
B Methyl red
C Phenolphthaline
D Methyl orange
Sodium carbonate (soda ash) is not used in the manufacture of
A Fire extinguishers
B Sugar
C Baking powder
D Detergents
__________ process is used for the manufacture of sodium carbonate by ammonia soda process.
A Ostwald's
B Bosch
C Solvay
D Haber's
A tank contains 10,000 gallons of a solution that is 5 percent sodium chloride by volume. If 2500 gallons of water evaporate from the tank, the remaining solution will be approximately what percent sodium chloride?
A 1.25%
B 3.75%
C 6.25%
D 6.67%
The value of Sodium Absorption Ratio for high sodium water lies between
A 0 to 10
B 10 to 18
C 18 to 26
D 26 to 34
Sodium tri poly phosphate (STPP) is manufactured by reaction of phosphoric acid with sodium
A Carbonate
B Phosphate
C Bicarbonate
D Silicate
A special lottery is to be held to select the student who will live in the only deluxe room in a dormitory . There are 100 seniors, 150 juniors and 200 sophomres who applied. Each senior's junior's name , 2 times; and each sophomres who applied. Each senior's name is placed in the lottery 3 times; each junior's name ,2 times name, 2 times ; and each sphomore's name , 1 time . What is the probability that a senior's name will be chosen?
A 18
B 38
C 48 
D 28
Which one of the following elements does not form solid hydrogen carbonate?
A Sodium
B Potassium
C Caesium
D Lithium

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