Apart from the common control accounts, a control account can also be opened for?
Sales account
Purchases account
Cash account
Wages account
Correct answer is C
No explanation has been provided for this answer.
3.7dm\(^3\)
11.2dm\(^3\)
22.4dm\(^3\)
33dm\(^3\)
Correct answer is B
Molar mass of methane = 16g/mol
At S.T.P. its 8g occupies 11.2
so 16g occupies 22.4 dm\(^3\)
Molar mass of propane = 44g/mol\(^-1\) occupies 22.4dm\(^3\) at S.T.P
so 22g will occupy 11.2dm\(^3\)
An example of a polysaccharide is?
Dextrose
Mannose
Glucose
Starch
Correct answer is D
Polysaccharides are long chains of monosaccharides linked by glycosidic bonds. Three important polysaccharides, starch, glycogen, and cellulose, are composed of glucose.
Duralumin consists of aluminum, copper?
Zinc and Gold
Lead and Manganese
Nickel and Silver
Manganese and Magnesium
Correct answer is D
Duralumin is an alloy made up of 90% aluminum, 4% copper, 0.51% magnesium, and less than 1% manganese.
Which of the following can be obtained by fractional distillation?
Nitrogen from liquid air
Sodium Chloride from sea water
Iodine from solution of Iodine in carbon tetrachloride
Sulphur from the solution of sulphur in carbon disulphide
Correct answer is A
Fractional distillation is used to separate mixtures into its component parts or fractions with the difference in boiling points between successive fractions must be more than 10°C. An example is the liquid nitrogen and oxygen are then separated by fractional distillation .