Q. No.1. \(\mathrm{C}_2^{2-}, \mathrm{NO}^{+}, \mathrm{CN}^{-}, \mathrm{O}_2^{2+}\)
2. \(\mathrm{CO}, \mathrm{NO}, \mathrm{O}_2, \mathrm{CN}\)
3. \(\mathrm{CO}_2, \mathrm{NO}_2, \mathrm{O}_2, \mathrm{~N}_2 \mathrm{O}_5\)
4. \(\mathrm{CO}, \mathrm{CO}_2, \mathrm{NO}, \mathrm{NO}_2\)
| (a) | \(\mathrm{CH}_3^{+}\) | (b) | \(\mathrm{H}_3 \mathrm{O}^{+}\) |
| (c) | \(\mathrm{CH}_3^{-}\) | (d) | \(\mathrm{NH}_3\) |
1. a, b, c
2. b, c, d
3. a, c
4. None of the above
| Group | Period | |
| 1. | 13 | 5 |
| 2. | 6 | 14 |
| 3. | 13 | 7 |
| 4. | 8 | 5 |
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What is the group number and valency of the element having atomic number 119, respectively?
1. Valency =2 & Group = IB
2. Valency =2 & Group = IA
3. Valency =1 & Group = IB
4. Valency =1 & Group = IA
\(56, 57, 70, 80, 24\)
1. 0
2. 4
3. 6
4. 9
Palladium (Pd) has an exceptional outer electronic configuration of \(4 d^{10} 5 s^0\). It belongs to:
1. \(4^{\text {th }}\)period, group 112. \(5^{\text {th }}\) period, group 10
3. \(6^{\text {th }}\)period, group 9
4. \(3^\text {rd}\) period, group 16
|
Column-I
(Electronic Configuration)
|
Column-II (Corresponding group and block) |
| \(P=n s^2 n p^4\) | (A) Group no = 17, p-block |
| \(Q=(n-1) d^2 n s^2 \) | (B) Group no = 4, d-block |
| \(R=(n-2) f^7(n-1) d^1 n s^2\) | (C) Group no = 16, p-block |
| \(S=(n-1) d^{10} n s^2 n p^5 \) | (D) Group no =3, f-block |
2. (P-C),(Q-B),(R-D),(S-A)
3. (P-A),(Q-C),(R-B),(S-D)
4. (P-B),(Q-D),(R-C),(S-A)
Match the name of elements given in list-I with the corresponding electronic configuration given in list-II and select the correct answer using the codes given below:
|
List-I (element) |
List-II (electronic configuration) |
||
| (a) |
Gallium |
1. |
1s2 2s2 2p6 3s2 3p6 4s2 3d1 |
| (b) |
Vanadium |
2. |
1s2 2s2 2p6 3s2 3p6 4s2 3d10 |
| (c) |
Zinc |
3. |
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p1 |
| (d) |
Scandium |
4. |
1s2 2s2 2p6 3s2 3p6 4s2 3d3 |
Codes :
| (a) | (b) | (c) | (d) | |
| 1. | 2 | 1 | 3 | 4 |
| 2. | 3 | 4 | 1 | 2 |
| 3. | 3 | 4 | 2 | 1 |
| 4. | 1 | 2 | 4 | 3 |
Which of the following species will be isoelectronic with each other?
(i) F– (ii) Ar (iii) Mg2+ (iv) Rb+
1. i and ii
2. i and iv
3. i and iii
4. ii and iv
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