Trends in the periodic table - class-XI

Question 1 Multiple Choice (Single Answer)

On the Mulliken scale, the average of ionization potential and electrons affinity is known as _____(electronegativity/affinity).

electronegativity
electroneaffinity
electropositivity
none

Question 2 Multiple Choice (Single Answer)

If the E.N. value of Nitrogen in the pauling scale is 3.0, then he value in mulliken scale will be

$11.2$
$22.4$
$8.4$
$3.0$

Question 3 Multiple Choice (Single Answer)

Which of the following is the correct order of hydrated radii?

$Li^{+} < Na^{+} < K^{+} < Rb^{+} < Cs^{+}$
$Rb^{+} < Na^{+} < Li ^{+} < Cs^{+} < K^{+}$
$Cs^{+} < Rb^{+} < K^{+} < Na ^{+}< Li^{+}$
$Li^{+} < K^{+} < Na^{+} < Rb ^{+} < Cs ^{+}$

Question 4 Multiple Choice (Single Answer)

Electronegativity of $F$ on Pauling's scale is 4.0. The value on Mulliken's scale is:

$11.2$
$14.4$
$16.8$
None of these

Question 5 Multiple Choice (Single Answer)

EN(mulliken scale) of the element (A) is $E _1$ and IP is $E _2$. Hence, EA will be:

$2E _1 - E _2$
$E _1 - E _2$
$E _1 - 2E _2$
$(E _1 + E _2)/2$

Question 6 Multiple Choice (Single Answer)

The ionic radii of ${Rb}^{+}$ and ${I}^{-}$ are $1.46$ and $2.16$ $\mathring { A } $, respectively. The most probable type of structure exhibited by it is

$CsCl$ type
$NaCl$ type
$ZnS$ type
$Ca{F} _{2}$ type

Question 7 Multiple Choice (Single Answer)

Which pair of element has almost identical electronegativity values?

$In,Tl$
$B,Al$
$B,Ga$
$Al,Tl$

Question 8 Multiple Choice (Single Answer)

Mulliken scale of elecrtonegativity uses the concept of:

E. A. and EN of pauling
E.A. and atomic size
E.A. and I.P.
E.A. and bond energy

Question 9 Multiple Choice (Single Answer)

If the ionisation potential is IP, electron affinity is EA and electronegativity is x then which of the following relation is correct.

2X-EA-IP=0
2EA-X-IP=0
2IP-X-EA=0
All of the above

Question 10 Multiple Choice (Single Answer)

Electronegativity of F on Pauling scale is 4.0. Its value on Mulliken scale is__________.

12.35
11.0
15.2
14.2

Question 11 Multiple Choice (Single Answer)

Define the relation among the $EN,,IE;and;E.A.$

$EN=\displaystyle\frac{IE\times EA}{2}$
$EN=IE+EA$
$2EN=IE-EA$
$EN=\displaystyle\frac{IE+EA}{2}$
$EN=\displaystyle\frac{IE-EA}{2}$

Question 12 Multiple Choice (Single Answer)

The $Z _{effective}$ for $He$ is?

2
1.7
1.85
1.65

Question 13 Multiple Choice (Single Answer)

The screening effect of 'd' electrons is :

much more than s-electrons
equal to s-electrons
equal to p-electrons
much less than s-electrons

Question 14 Multiple Choice (Single Answer)

An atom of each element has a definite combining capacity called :

valency
affinity
bonding
energy levels

Question 15 Multiple Choice (Single Answer)

The electrons present in the outermost shell of an atom are known as :

protons
neutrons
octet
valence electrons

Question 16 Multiple Choice (Single Answer)

The valency of nitrogen in nitrogen dioxide is:

1
2
3
4

Question 17 Multiple Choice (Single Answer)

Valency of magnesium and oxygen in $MgO$ is:

one and one
two and two
one and two
two and one

Question 18 Multiple Choice (Single Answer)

Valence electrons are responsible for the chemical properties of an atom.

True
False

Question 19 Multiple Choice (Single Answer)

The element with the highest first ionisation potential is:

Boron
Carbon
Nitrogen
Oxygen

Question 20 Multiple Choice (Single Answer)

The ionisation potential of hydrogen atom is $13.6\ eV$. The energy of required to remove an electrons in the $n=2$ state of hydrogen atom is:

$27.2\ eV$
$13.6\ eV$
$6.8\ eV$
$3.4\ eV$

Trends in the periodic table - class-XI

Questions