Oxidation of secondary propyl alcohol gives:
a)Ethyl alcohol
b)Acetone
c)Acetaldehyde
d)Normal propyl alcohol
Enzyme show optimum activity between 37°C to 50°C. It however works:
a)It loses activity permanently below 37°C
b)It loses activity permanently above 50°C
c)Below 37°C
d)Above 50°C
Which of the following influences the variation of temperature at which boiling of liquid takes place:
a)Amount of liquid
b)Outside temperature
c)Volume of container
d)Outside pressure
7.6 grams of CS2 is reacted with 12.8g of 02, CS2 + 302 → CO2 + 2S02, limiting reactant is:
a)CO2
b)CS2
c)O2
d)SO2
An organic compound has C=40%, H=6.67% and 0=53.3%. What is the empirical formula of the compound:
a)CH20
b)C2H20
c)C2H30
d)CH3O
Which of the following temperatures is referred to as the absolute zero:
a)0°C
b)-273.16 °K
c)32 °F
d)-273.16 °C
1 atm of nitrogen is at 25°C, its pressure has increased to 2 atm at 50°C. Volume will change from 1 dm3 to:
a)3 dm3
b)4 dm3
c)0.542 dm3
d)2 dm3
Graph of volume versus total pressure at constant temperature is:
a)A straight line
b)Non linear
c)First a straight line & then a curve line
d)First a curve and then a straight line
Which type of isomerism can propanal and acetone exhibit:
a)Chain isomerism
b)Metamerism
c)Functional group isomerism
d)Position isomerism
Organic compound are classified into:
a)Homocycle and heterocyclic compounds
b)Open chain and closed chain compound
c)Carbon compounds and non carbon compounds
d)Aromatic and cyclic compounds
