1.
Which is a correct pair?
2.
According to Dalton, atoms are:
3.
Which of these is a heterogeneous mixture?
4.
Which subatomic particle was discovered first?
6.
Which is true about solutions?
7.
Atoms combine chemically to form:
8.
Which cannot be broken down?
9.
Water (H₂O) can be separated by:
10.
In heterogeneous mixture, constituents are:
11.
Pure substances have:
12.
Which of the following is matter?
13.
Which method separates solids from liquids?
14.
Elements are classified into:
15.
Elements are made up of:
16.
Milk is an example of:
17.
In 3.4×10², the value is:
18.
5,600,000 in exponential notation is:
19.
Which statement changed Dalton’s theory?
20.
Which is an example of a compound?
21.
Compounds are formed by:
22.
0.00056 in scientific notation is:
23.
Which of the following has variable composition?
24.
The symbol representation of elements is called:
25.
Air is an example of:
26.
Which of these is not a state of matter mentioned in text?
27.
Which is a physical property?
28.
Dalton stated that atoms of different elements differ in:
29.
A mixture can be separated by:
30.
Mixtures are formed by:
31.
Which scientific form is correct?
32.
Which term describes equal distribution in mixture?
33.
Dalton said atoms cannot be ___.
34.
Matter is anything that has ___ and occupies space.
35.
Which does not show Tyndall effect?
36.
In scientific notation, exponent shows:
37.
Chemical property includes:
38.
Dalton stated that atoms combine in:
39.
A homogeneous mixture has:
40.
N×10ⁿ indicates N is:
41.
Atoms of same element may differ in:
42.
In a solution, saltwater is an example of:
43.
Which mixture is uniform throughout?
44.
The smallest identity of a compound is:
45.
Modern view says atoms are:
