Related Questions

In a continuous distillation column, the optimum reflux ratio ranges from __________ times the minimum reflux ratio.
A 1.1 to 1.5
B 1.6 to 2
C 2.2 to 2.6
D 2.7 to 3
What is the reflux ratio at total reflux?
A Zero
B Infinity
C Unity
D Data insufficient
নিচের বিক্রিয়ায় যৌগটির রাসায়নিক সংকেত লিখ। CH3COOH→Red P+Cl2 ClCH2COOH →KCN(alc Solution) CNCH2COOH →Dil HCl reflux[A]
A HOOC-COOH
B HO-CH2-COOH
C HCO-COOH
D HOOC-CH2-COOH
The recognized features of gastro esophageal reflux are
A Respiratory Symptoms
B Failure to thrive
C Anemia
D Carcinoma of stomach
E Peptic ulcer
Complications of gastro-oesophageal reflux are
A Esophageal stricture
B Barrett's oesophagitis
C Carcinoma of the stomach
D Hoarseness of voice
E Bronchospasm
Minimum reflux ratio in a distillation column results in
A Optimum no. of trays
B Minimum reboiler size
C Maximum condenser size
D Minimum number of trays
In McCabe-Thiele method of theoretical plate calculation for a distillation column, the operating lines of stripping and rectifying sections coincide with the diagonal at __________ reflux.
A Total
B Minimum
C Operating
D Maximum permissible
The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will
A Increase
B Decrease
C Remains same
D Depend on saturated boiling point; may increase or decrease
As the reflux ratio decreases, the
A Separation becomes more efficient
B Number of plates increases
C Column diameter increases
D None of these
In case of binary distillation, increasing the reflux ratio above optimum does not result in the increase of
A Area between operating line and 45° diagonal x-y diagram
B Condenser and reboiler surfaces
C Tower cross-section
D None of these

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