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Q 1/20
Score 0
Which physical property of an alkane increase as relative molecular mass
increases?
30
boiling point
all of the above
viscosity
melting point
Q 2/20
Score 0
Which bond is not in the molecule of ethanoic acid?
30
O-H
C-O
C=O
C=C
20 questions
Q.
Which physical property of an alkane increase as relative molecular mass
increases?
1
30 sec
Q.
Which bond is not in the molecule of ethanoic acid?
2
30 sec
Q.
Which of the following organic reactions is taking place when hydrogen atoms are replaced by chlorine when alkane is heated?
3
30 sec
Q.
Which of the following organic reactions is taking place when unsaturated molecules react?
4
30 sec
Q.
Which of the following organic reactions is taking place when all carbon atoms in an organic molecules are converted to carbon dioxide?
5
30 sec
Q.
Which of the following organic reactions is taking place when a condensation reaction forms esters?
6
30 sec
Q.
Which statements about alcohol are correct?
1. It can be made by fermentation
2. It is unsaturated compound
3. It burns in air and can be used as a fuel.
7
30 sec
Q.
When a radioactive nucleus emits an alpha particle, the mass number of the atom _____.
8
30 sec
Q.
Positron emission results from the transformation of one nuclear proton into a neutron.
The isotope thus produced possesses _____.
9
30 sec
Q.
The nucleus of radioactive element possess _____.
10
30 sec
Q.
Atom bomb is based on the principle ______.
11
30 sec
Q.
Penetrating power of proton is ____
greater than neutron C. lesser than electron
greater than electron D. none
12
30 sec
Q.
Large energy released in an atomic bomb explosion is mainly due to ____.
13
30 sec
Q.
Only common non-reducing sugar is ____.
14
30 sec
Q.
Most commonly used carbohydrate in home is ____.
15
30 sec
Q.
Stored form of carbohydrate in animals is____
Glucose C. Maltose
Starch D. Glycogen
16
30 sec
Q.
Large molecules made up of small monomers are called _____.
17
30 sec
Q.
Benedict's solution consists of
18
30 sec
Q.
Which of the following is the application of nanotechnology to food science and technology?
19
30 sec
Q.
Fullerene or bucky ball is made up of ____ carbon atoms.
