ECAT Pre Engineering Chemistry Chapter 12 MCQ Test With Answer

Question # 1

Hydrides are:

Ionic A
Covalent B
Intermediate C
All above D

Question # 2

Hydration energy depends upon:

Change of Ion A
Size of Ion B
Charge to size ratio C
Heat changes D

Question # 3

First of all, idea of groups and periods was introduced by:

Al-Razi A
Dobriener B
Newland C
Mendeleev D

Question # 4

Scientist(s) made contributions in the field designing a periodic table

Newland A
Dobriener B
Mendeleev & Mosley C
All of these D

Question # 5

Which group elements are the least metallic in nature?

IV-A A
V-A B
VI-A C
VII-A D

Question # 6

Mosley gave his periodic law in the year:

1829 A
1864 B
1871 C
1913 D

Question # 7

Atomic radius changes from top to bottom in a group.:

Increases A
Decreases B
Remains same C
Sometimes increases & Decreases D

Question # 8

All facts of chemistry must be in simple logical patterns because chemistry is a subject:

Simple A
Complex B
Un-understandable C
Easy D

Question # 9

Newland said, every eight element repeats properties of element:

1st A
2nd B
3rd C
4th D

Question # 10

Element with higher oxidation state form oxides:

Acidic A
Basic B
Ampholetic C
Peroxides D

Question # 11

The periodic function of properties of elements is their atomic number

Al-Razi A
Mosley B
Newland C
Mendeleev D

Question # 12

Alkali and alkaline earth metals are basic oxides except:

Li A
Be B
Fr C
Ba D

Question # 13

Law of octaves was given by:

Al-Razi A
Dobriener B
Newland C
Mendeleev D

Question # 14

the element not known till Mandleev tabulated his periodic table:

Carbon A
Hydrogen B
Aluminum C
Germanium D

Question # 15

Newland's gave law:

Triad's law A
Octaves law B
Period law C
Moderen periodic law D

Question # 16

Sodium belongs to block of periodic table:

S-Block A
p- block B
d- block C
f- bloci D

Question # 17

Dobereiner gave his law in the year:

1829 A
1864 B
1871 C
1931 D

Question # 18

Mendeleev was a scientist:

Russioan A
German B
English C
French D

Question # 19

Oxidation state of boron, aluminium and gallium is:

+1 A
+2 B
+3 C
+5 D

Question # 20

There were seven groups in periodic table proposed by:

Al-Razi A
Dobrierner B
Newland C
Mendeleev D

Question # 21

Ionization energy of sodium is (Kj/mol)

503 A
523 B
513 C
524 D

Question # 22

Properties of metal are:

Malleable and ductile A
Form basic oxides B
Tamish in air C
All are true D

Question # 23

Mendeleev gave his periodic law in the year:

1829 A
1864 B
1871 C
1913 D

Question # 24

Period Number 6 contains elements in it:

2 A
8 B
18 C
32 D

Question # 25

Newland's was scientist:

Russian A
German B
English C
French D

Question # 26

Electron affinity value from higher to heavier element:

Increase A
Decreases B
remains same C
Not effect D

Question # 27

Mark the correct statement:

All lanthanides are present in the same period. A
all halogens are present in he same period. B
All the alkali metals are present in the same group. C
All the noble gases are present in the same period. D

Question # 28

Law of triads was given by:

Al-Razi A
Dobriener B
Newland C
Mendeleev D

Question # 29

Newland gave his law in the year:

1829 A
1864 B
1871 C
1913 D

Question # 30

Binary compounds of hydrogens are called:

Halides A
Hydrides B
Oxides C
Nitrides D

Sr.#	Question	Answer
1	Mark the correct statement:	A. All lanthanides are present in the same period. B. all halogens are present in he same period. C. All the alkali metals are present in the same group. D. All the noble gases are present in the same period.
2	First of all, idea of groups and periods was introduced by:	A. Al-Razi B. Dobriener C. Newland D. Mendeleev
3	There were seven groups in periodic table proposed by:	A. Al-Razi B. Dobrierner C. Newland D. Mendeleev
4	Electron affinity value from higher to heavier element:	A. Increase B. Decreases C. remains same D. Not effect
5	Oxidation state of boron, aluminium and gallium is:	A. +1 B. +2 C. +3 D. +5
6	Law of triads was given by:	A. Al-Razi B. Dobriener C. Newland D. Mendeleev
7	Newland gave his law in the year:	A. 1829 B. 1864 C. 1871 D. 1913
8	Newland's was scientist:	A. Russian B. German C. English D. French
9	Which group elements are the least metallic in nature?	A. IV-A B. V-A C. VI-A D. VII-A
10	Element with higher oxidation state form oxides:	A. Acidic B. Basic C. Ampholetic D. Peroxides

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