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SR Secondary Chemistry Chapter 3 Quiz

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Lesson -3

Due date: 2020-09-30, 00:00 IST.

Assignment not submitted

1 point
In a period with increase in atomic number, the metallic character of an element

 Decrease across period 

 Increase across period

 No change  across period

 Constant across period 


1 point

Which of the following ions are not isoelectronic with Ar

Na+Na+
Ca2+Ca2+
Cl−1Cl−1
K+K+
1 point

The group in which all the three physical stares (solid .liquid, gas) are observed is

 Group  15

 Group 14

 Group 18

 Group  l7
1 point

The order of ionization energy of  K, Ca, & Ba are

 K>Ca>Ba 

 Ca>Ba>K

 Ba> K>Ca
 K>Ba>Ca
1 point

The element with zero electron gain enthalpy is

 Argon

 Lithium

 Calcium

 Fluorine
1 point

The maximum number of electrons in d- orbital of an element with atomic number 46 is

 12

 20

 18

 14
1 point

Choose the correct order of  ionization energy

 N>O>F

 F>O>N

 N>O<F

 O>F>N
1 point

Be shows diagonal relationship with

 Mg

 Al

 B

 Na
1 point

The ionisation potential of N > O because


 Ionisation potential increases with decrease in size

 N posses stable half filled p-orbital

 The screening effect in N > O

 O is more electropositive than N 


1 point

The physical properties of chromium is most closely related to

 Niobium

 Tungsten

 Titanium

 Calcium

You may submit any number of times before the due date. The final submission will be considered for grading.

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