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Q 1/15
Score 0
Which of the following statements about Dalton’s atomic theory are correct ?(i) Atoms are destructible and divisible .
(ii)Atoms are indestructible ,indivisible and the smallest particle of an element.
(iii)Atoms of the same element may not be alike .
(iv)Atoms of the same element are alike in all respect.
30
b)(i) and (iv)
c) (ii) and (iv)
a)(i) and (ii)
d)(iii) and (iv)
Q 2/15
Score 0
In phosphoric acid ,the valency of phosphate radical is
30
-2
+3
-3
-1
15 questions
Q.
Which of the following statements about Dalton’s atomic theory are correct ?(i) Atoms are destructible and divisible .
(ii)Atoms are indestructible ,indivisible and the smallest particle of an element.
(iii)Atoms of the same element may not be alike .
(iv)Atoms of the same element are alike in all respect.
1
30 sec
Q.
In phosphoric acid ,the valency of phosphate radical is
2
30 sec
Q.
If two liquids have same boiling point and are completely soluble in each other. Which method would you use to separate them?
3
30 sec
Q.
Fractional distillation can be used to separate alcohol and water. This method of separation uses the fact that alcohol and water
4
30 sec
Q.
Which of the following is true about a charged atom
5
30 sec
Q.
An ideal method to separate water and chloroform is
6
30 sec
Q.
A few substances are arranged in the increasing order of their force of attraction between their particles.which one of the following represents the correct arrangement ?
7
60 sec
Q.
choose the correct statement from the following
8
60 sec
Q.
Variable valencies are used to indicate ion
9
60 sec
Q.
Which one among the following most correctly determines the atomic number of an element?
10
60 sec
Q.
A radical with one atom of Sulphur and three atoms of oxygen is
11
60 sec
Q.
A metal which is found in liquid state at room temperature
12
60 sec
Q.
The most abundant element in the atmosphere
13
60 sec
Q.
which of the following has minimum inter molecular space
14
60 sec
Q.
Select the chemical formula of litharge from the following
