263903
The pair of metal ions which are diamagnetic:
1 \(\mathrm{Sc}^{+3}, \mathrm{Cu}^{+2}\)
2 \(\mathrm{Sc}^{+3}, \mathrm{Zn}^{+2}\)
3 \(\mathrm{Zn}^{+2}, \mathrm{Cu}^{+2}\)
4 \(\mathrm{Sc}^{+3}, \mathrm{Ti}^{+3}\)
Explanation:
b \(\mathrm{Sc}^{+3}, \mathrm{Zn}^{+2}\)
NCERT-XII-101
TEST SERIES (CHEMISTRY FST)
263861
In case of \(\mathrm{sp}^3 \mathrm{~d}\) hybridisation, if ratio of longer and shorter o-bonds is \(1: 1\) then how many lone pair's must be present:
1 Zero
2 Oпe
3 Two
4 Three
Explanation:
b There must be one lone pair of electron occupies equitorial positon.
NCERT-XI-113
TEST SERIES (CHEMISTRY FST)
263895
Spin only magnetic moment is maximum for which of the following ion :
1 \(\mathrm{Ti}^{+3}\)
2 \(\mathrm{Cr}^2\)
3 \(\mathrm{Mn}^{+2}\)
4 \(\mathrm{Fe}^{+2}\)
Explanation:
c \(\mu \propto\) no. of unpaired electron \(\mathrm{Ti}^{+3}=1\) unpaired electron \(\mathrm{Cr}^{+2}=4\) unpaired electron \(M n^{+2}=5\) uпpaired electron \(\mathrm{Fe}^{+2}=4\) unpaired electron
NCERT-XII-130
TEST SERIES (CHEMISTRY FST)
263896
Correct order of resonance energy for: a. thiophene b. Pyrrole c. Furan
1 \(c>b>a\)
2 \(b>c>a\)
3 \(b>a>c\)
4 \(a>b>c\)
Explanation:
d thiophene > Pyrole > Furon
NCERT-XI-353
TEST SERIES (CHEMISTRY FST)
263860
Consider the order \(\mathrm{N}^{-3}>\mathrm{O}^2>\mathrm{F}^{-}>\mathrm{Na}^{+}\)the correct statement is:
1 increasing order of Zeff.
2 increasing order of I.E.
3 decreasing order of size
4 increasing order of electron affinity
Explanation:
c for iscelectronic species ionic radii \(\propto \frac{1}{\text { ENC }}\)
263903
The pair of metal ions which are diamagnetic:
1 \(\mathrm{Sc}^{+3}, \mathrm{Cu}^{+2}\)
2 \(\mathrm{Sc}^{+3}, \mathrm{Zn}^{+2}\)
3 \(\mathrm{Zn}^{+2}, \mathrm{Cu}^{+2}\)
4 \(\mathrm{Sc}^{+3}, \mathrm{Ti}^{+3}\)
Explanation:
b \(\mathrm{Sc}^{+3}, \mathrm{Zn}^{+2}\)
NCERT-XII-101
TEST SERIES (CHEMISTRY FST)
263861
In case of \(\mathrm{sp}^3 \mathrm{~d}\) hybridisation, if ratio of longer and shorter o-bonds is \(1: 1\) then how many lone pair's must be present:
1 Zero
2 Oпe
3 Two
4 Three
Explanation:
b There must be one lone pair of electron occupies equitorial positon.
NCERT-XI-113
TEST SERIES (CHEMISTRY FST)
263895
Spin only magnetic moment is maximum for which of the following ion :
1 \(\mathrm{Ti}^{+3}\)
2 \(\mathrm{Cr}^2\)
3 \(\mathrm{Mn}^{+2}\)
4 \(\mathrm{Fe}^{+2}\)
Explanation:
c \(\mu \propto\) no. of unpaired electron \(\mathrm{Ti}^{+3}=1\) unpaired electron \(\mathrm{Cr}^{+2}=4\) unpaired electron \(M n^{+2}=5\) uпpaired electron \(\mathrm{Fe}^{+2}=4\) unpaired electron
NCERT-XII-130
TEST SERIES (CHEMISTRY FST)
263896
Correct order of resonance energy for: a. thiophene b. Pyrrole c. Furan
1 \(c>b>a\)
2 \(b>c>a\)
3 \(b>a>c\)
4 \(a>b>c\)
Explanation:
d thiophene > Pyrole > Furon
NCERT-XI-353
TEST SERIES (CHEMISTRY FST)
263860
Consider the order \(\mathrm{N}^{-3}>\mathrm{O}^2>\mathrm{F}^{-}>\mathrm{Na}^{+}\)the correct statement is:
1 increasing order of Zeff.
2 increasing order of I.E.
3 decreasing order of size
4 increasing order of electron affinity
Explanation:
c for iscelectronic species ionic radii \(\propto \frac{1}{\text { ENC }}\)
263903
The pair of metal ions which are diamagnetic:
1 \(\mathrm{Sc}^{+3}, \mathrm{Cu}^{+2}\)
2 \(\mathrm{Sc}^{+3}, \mathrm{Zn}^{+2}\)
3 \(\mathrm{Zn}^{+2}, \mathrm{Cu}^{+2}\)
4 \(\mathrm{Sc}^{+3}, \mathrm{Ti}^{+3}\)
Explanation:
b \(\mathrm{Sc}^{+3}, \mathrm{Zn}^{+2}\)
NCERT-XII-101
TEST SERIES (CHEMISTRY FST)
263861
In case of \(\mathrm{sp}^3 \mathrm{~d}\) hybridisation, if ratio of longer and shorter o-bonds is \(1: 1\) then how many lone pair's must be present:
1 Zero
2 Oпe
3 Two
4 Three
Explanation:
b There must be one lone pair of electron occupies equitorial positon.
NCERT-XI-113
TEST SERIES (CHEMISTRY FST)
263895
Spin only magnetic moment is maximum for which of the following ion :
1 \(\mathrm{Ti}^{+3}\)
2 \(\mathrm{Cr}^2\)
3 \(\mathrm{Mn}^{+2}\)
4 \(\mathrm{Fe}^{+2}\)
Explanation:
c \(\mu \propto\) no. of unpaired electron \(\mathrm{Ti}^{+3}=1\) unpaired electron \(\mathrm{Cr}^{+2}=4\) unpaired electron \(M n^{+2}=5\) uпpaired electron \(\mathrm{Fe}^{+2}=4\) unpaired electron
NCERT-XII-130
TEST SERIES (CHEMISTRY FST)
263896
Correct order of resonance energy for: a. thiophene b. Pyrrole c. Furan
1 \(c>b>a\)
2 \(b>c>a\)
3 \(b>a>c\)
4 \(a>b>c\)
Explanation:
d thiophene > Pyrole > Furon
NCERT-XI-353
TEST SERIES (CHEMISTRY FST)
263860
Consider the order \(\mathrm{N}^{-3}>\mathrm{O}^2>\mathrm{F}^{-}>\mathrm{Na}^{+}\)the correct statement is:
1 increasing order of Zeff.
2 increasing order of I.E.
3 decreasing order of size
4 increasing order of electron affinity
Explanation:
c for iscelectronic species ionic radii \(\propto \frac{1}{\text { ENC }}\)
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
TEST SERIES (CHEMISTRY FST)
263903
The pair of metal ions which are diamagnetic:
1 \(\mathrm{Sc}^{+3}, \mathrm{Cu}^{+2}\)
2 \(\mathrm{Sc}^{+3}, \mathrm{Zn}^{+2}\)
3 \(\mathrm{Zn}^{+2}, \mathrm{Cu}^{+2}\)
4 \(\mathrm{Sc}^{+3}, \mathrm{Ti}^{+3}\)
Explanation:
b \(\mathrm{Sc}^{+3}, \mathrm{Zn}^{+2}\)
NCERT-XII-101
TEST SERIES (CHEMISTRY FST)
263861
In case of \(\mathrm{sp}^3 \mathrm{~d}\) hybridisation, if ratio of longer and shorter o-bonds is \(1: 1\) then how many lone pair's must be present:
1 Zero
2 Oпe
3 Two
4 Three
Explanation:
b There must be one lone pair of electron occupies equitorial positon.
NCERT-XI-113
TEST SERIES (CHEMISTRY FST)
263895
Spin only magnetic moment is maximum for which of the following ion :
1 \(\mathrm{Ti}^{+3}\)
2 \(\mathrm{Cr}^2\)
3 \(\mathrm{Mn}^{+2}\)
4 \(\mathrm{Fe}^{+2}\)
Explanation:
c \(\mu \propto\) no. of unpaired electron \(\mathrm{Ti}^{+3}=1\) unpaired electron \(\mathrm{Cr}^{+2}=4\) unpaired electron \(M n^{+2}=5\) uпpaired electron \(\mathrm{Fe}^{+2}=4\) unpaired electron
NCERT-XII-130
TEST SERIES (CHEMISTRY FST)
263896
Correct order of resonance energy for: a. thiophene b. Pyrrole c. Furan
1 \(c>b>a\)
2 \(b>c>a\)
3 \(b>a>c\)
4 \(a>b>c\)
Explanation:
d thiophene > Pyrole > Furon
NCERT-XI-353
TEST SERIES (CHEMISTRY FST)
263860
Consider the order \(\mathrm{N}^{-3}>\mathrm{O}^2>\mathrm{F}^{-}>\mathrm{Na}^{+}\)the correct statement is:
1 increasing order of Zeff.
2 increasing order of I.E.
3 decreasing order of size
4 increasing order of electron affinity
Explanation:
c for iscelectronic species ionic radii \(\propto \frac{1}{\text { ENC }}\)
263903
The pair of metal ions which are diamagnetic:
1 \(\mathrm{Sc}^{+3}, \mathrm{Cu}^{+2}\)
2 \(\mathrm{Sc}^{+3}, \mathrm{Zn}^{+2}\)
3 \(\mathrm{Zn}^{+2}, \mathrm{Cu}^{+2}\)
4 \(\mathrm{Sc}^{+3}, \mathrm{Ti}^{+3}\)
Explanation:
b \(\mathrm{Sc}^{+3}, \mathrm{Zn}^{+2}\)
NCERT-XII-101
TEST SERIES (CHEMISTRY FST)
263861
In case of \(\mathrm{sp}^3 \mathrm{~d}\) hybridisation, if ratio of longer and shorter o-bonds is \(1: 1\) then how many lone pair's must be present:
1 Zero
2 Oпe
3 Two
4 Three
Explanation:
b There must be one lone pair of electron occupies equitorial positon.
NCERT-XI-113
TEST SERIES (CHEMISTRY FST)
263895
Spin only magnetic moment is maximum for which of the following ion :
1 \(\mathrm{Ti}^{+3}\)
2 \(\mathrm{Cr}^2\)
3 \(\mathrm{Mn}^{+2}\)
4 \(\mathrm{Fe}^{+2}\)
Explanation:
c \(\mu \propto\) no. of unpaired electron \(\mathrm{Ti}^{+3}=1\) unpaired electron \(\mathrm{Cr}^{+2}=4\) unpaired electron \(M n^{+2}=5\) uпpaired electron \(\mathrm{Fe}^{+2}=4\) unpaired electron
NCERT-XII-130
TEST SERIES (CHEMISTRY FST)
263896
Correct order of resonance energy for: a. thiophene b. Pyrrole c. Furan
1 \(c>b>a\)
2 \(b>c>a\)
3 \(b>a>c\)
4 \(a>b>c\)
Explanation:
d thiophene > Pyrole > Furon
NCERT-XI-353
TEST SERIES (CHEMISTRY FST)
263860
Consider the order \(\mathrm{N}^{-3}>\mathrm{O}^2>\mathrm{F}^{-}>\mathrm{Na}^{+}\)the correct statement is:
1 increasing order of Zeff.
2 increasing order of I.E.
3 decreasing order of size
4 increasing order of electron affinity
Explanation:
c for iscelectronic species ionic radii \(\propto \frac{1}{\text { ENC }}\)