Na
The isoelectronic set of ions is (a) N^3- ,Li^+ , Mg^2+ and O^2- (b) Li^+ , Na^+ , O^2- and F^- (c) F^- , Li^+ , Na^+ and ,Mg^2+ (d) N^3- , O^2- , F^- and Na^+
10
Dec
The isoelectronic set of ions is (a) N^3- ,Li^+ , Mg^2+ and O^2- (b) Li^+ , Na^+ , O^2- and F^- (c) F^- , Li^+ , Na^+ and ,Mg^2+ (d) N^3- , O^2- , F^- and Na^+ F^- and Na^+ Li^+ Mg^2+ (d) N^3- Mg^2+ and O^2- (b) Li^+ Na Na^+ and O^2- and F^- [...]
Tags:
F^- and Na^+ ,
Li^+ ,
Mg^2+ (d) N^3- ,
Mg^2+ and O^2- (b) Li^+ ,
Na ,
Na^+ and ,
O^2- and F^- (c) F^- ,
O2 ,
The isoelectronic set of ions is (a) N^3- ,
Which of the following statements is correct for covalent bond (a) Electrons are shared between two atoms (b) It may be polar or non – polar (c) Direction is non – polar (d) Valency electrons are attracted
01
Dec
Which of the following statements is correct for covalent bond (a) Electrons are shared between two atoms (b) It may be polar or non – polar (c) Direction is non – polar (d) Valency electrons are attracted As Br (b) Li Cl From the following K (C) O Na p S Se (d) N which [...]
Tags:
As ,
Br (b) Li ,
Cl ,
From the following ,
K (C) O ,
Na ,
p ,
S ,
Se (d) N ,
which group of elements easily forms cation (a) F ,
From the following , which group of elements easily forms cation (a) F , Cl , Br (b) Li , Na , K (C) O, S , Se (d) N , P, As
01
Dec
From the following , which group of elements easily forms cation (a) F , Cl , Br (b) Li , Na , K (C) O, S , Se (d) N , P, As As Br (b) Li Cl From the following K (C) O Na p S Se (d) N which group of elements easily [...]
Tags:
As ,
Br (b) Li ,
Cl ,
From the following ,
K (C) O ,
Na ,
p ,
S ,
Se (d) N ,
which group of elements easily forms cation (a) F ,
Which of the following pairs of elements cannot form an alloy (a) Zn, Cu (b) Fe, Hg (c) Fe, C (d) Hg, Na
30
Nov
Which of the following pairs of elements cannot form an alloy (a) Zn, Cu (b) Fe, Hg (c) Fe, C (d) Hg, Na C (d) Hg Cu (b) Fe Hg (c) Fe Na Which of the following pairs of elements cannot form an alloy (a) Zn November 30, 2020 Category: Uncategorised (JEE Advanced Physics by [...]
How many of the following s-block elements do not give characteristic colours in the flame test Li, Be, Ca, Sr, Mg, Na, K, Ba
29
Nov
How many of the following s-block elements do not give characteristic colours in the flame test Li, Be, Ca, Sr, Mg, Na, K, Ba Ba Be Ca How many of the following s-block elements do not give characteristic colours in the flame test Li K Mg Na Sr November 29, 2020 Category: Uncategorised (JEE Advanced [...]
Correct order of increasing activity is (a) Cu, Mg, Na (b) Na, Mg, Cu (c) Mg, Na, Cu (d) Cu, Na, Mg
15
Nov
Correct order of increasing activity is (a) Cu, Mg, Na (b) Na, Mg, Cu (c) Mg, Na, Cu (d) Cu, Na, Mg Correct order of increasing activity is (a) Cu Cu (c) Mg Cu (d) Cu Mg Na Na (b) Na November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) [...]
The group having isoelectronic species si (a) O-, F-, Na, Mg+ (b) O2-, F-, Na, Mg 2+ (c) O-, F-, Na+, Mg 2+ (d) O2-, F-, Na+, Mg 2+
10
Nov
The group having isoelectronic species si (a) O-, F-, Na, Mg+ (b) O2-, F-, Na, Mg 2+ (c) O-, F-, Na+, Mg 2+ (d) O2-, F-, Na+, Mg 2+ F Mg 2+ Mg 2+ (c) O- Mg 2+ (d) O2- Mg+ (b) O2- Na The group having isoelectronic species si (a) O- November 10, 2020 [...]
Tags:
F ,
Mg 2+ ,
Mg 2+ (c) O- ,
Mg 2+ (d) O2- ,
Mg+ (b) O2- ,
Na ,
The group having isoelectronic species si (a) O- ,
Which of the following group of elements elements eliminates electron easily (a) N, P, As (b) O, S, Se (c) Li, Na, K (d) Cl, Ba, I
10
Nov
Which of the following group of elements elements eliminates electron easily (a) N, P, As (b) O, S, Se (c) Li, Na, K (d) Cl, Ba, I As (b) O Ba I K (d) Cl Na p S Se (c) Li Which of the following group of elements elements eliminates electron easily (a) N November [...]
The correct order in which the first ionisation potential increases is (a) K, Be, Na (b) Be, Na , K (c) Na, K, Be (d) K, Na, Be
09
Nov
The correct order in which the first ionisation potential increases is (a) K, Be, Na (b) Be, Na , K (c) Na, K, Be (d) K, Na, Be Be Be (d) K K K (c) Na Na Na (b) Be The correct order in which the first ionisation potential increases is (a) K November 9, [...]