400 cm3
625 cm3
1000 cm3
1600 cm 3
Correct answer is B
Conc. g/dm3 = 0.20 x 40 gmol -1 = 8 g/dm3
1000 cm3 of 0.20m NaOH contains 8g of NaOH :. 5g of NaOH will be contained in 5/8 x 1000 x 625cm3
When excess ethene is shaken with acidified KMnO4 solution, the product obtained is
ethane
ethanal
ethane - 1, 2 - diol
ethanoic acid
Correct answer is C
No explanation has been provided for this answer.
Polymerization of glucose
Hydrolysis of starch
Fermentation of sugar
Dehydration of carbohydates
Correct answer is B
The enzyme amylase is secreted out of the cells (an exoenzyme) into the surrounding media, catalyzing the breakdown of starch into smaller sugars which can then be absorbed by the cells for use.
The reaction of vegetable oil with a solution of wood ash is
saponification
neutralization
hydrogenation
esterification
Correct answer is A
No explanation has been provided for this answer.
What is the organic product of the reaction of C2H 5OH with excess acidified K 2Cr 2O7(aq)?
CH3COOH
C2H5OC2H5
HCOOCH 3
C2H5CHO
Correct answer is A
No explanation has been provided for this answer.