The total number of ions present in 111 g of CaCl2 is
Anonymous Quiz
37%
1mole
32%
2 mole
23%
3 mole
8%
4 mole
The sulphate of a metal M contains 9.87% of M. This sulphate is isomorphous with ZnSO4.7H2O. The atomic weight of M is
Anonymous Quiz
19%
8.3
36%
11.3
39%
24.3
6%
None
Forwarded from Shubham Jha - Class 9
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On the Paulings electronegativity scale the element next to F is
Anonymous Quiz
23%
N
33%
C
33%
O
11%
Li
π2
π2
π1
π1
The electronic configuration of an element is 1sΒ², 2sΒ² 2p6, 3sΒ² 3pΒ³. What is the atomic number of the element which is just below the above element in the periodic table
Anonymous Quiz
29%
31
35%
33
25%
34
12%
32
π3β€2π2π2
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π3π1
The number of nodal planes present in s Γ s antibonding orbitals is
Anonymous Quiz
25%
1
40%
0
29%
2
6%
9
π€1
Among the following the maximum covalent character is shown by the compound
Anonymous Quiz
50%
Nacl
23%
Alcl3
21%
Mgcl2
6%
None
π₯3
Which of the following element has least number of electrons in its M-shell?
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45%
K
25%
Mn
23%
Si
8%
Ca
In the ground state, an element has 13 electrons in its M-shell. The element is_____.
Anonymous Quiz
26%
Copper
44%
Chromium
20%
Magnse
10%
Iron
π’2