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Standard XII
Chemistry
Introduction to Chemical Reactions
2. Total numb...
Question
2. Total number of electrons present in 48 gram Mg²+ positive are : 1. 24NA 2. 2.5 NA 3. 1.1 NA 4. 100 NA
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Q.
Total number of nucleons present in 18ml of water is
1) 10 NA
2) 100 NA
3) 18NA
4) 4 NA
Q.
How many protons are present in 1.8g
N
H
+
4
:
(1)
N
A
(2) 1.2
N
A
(3) 1.1
N
A
(4) 11
N
A
Which of the following cannot exhibit geometrical isomerism?
Q.
N
a
+
.
M
g
2
+
,
A
l
3
+
and
S
i
4
+
are isoelectronic. The order of their ionic size is
Q.
N
a
+
,
M
g
2
+
,
A
l
3
+
and
S
i
4
+
are isoelectronic, their ionic size will follow the order:
Q.
Among the iso-electronic ions
N
a
+
,
M
g
2
+
and
A
l
3
+
,
N
a
+
ion has the largest size.
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