ECAT Pre Engineering Chemistry Chapter 12 MCQ Test With Answer

Question # 1

Element with higher oxidation state form oxides:

Acidic A
Basic B
Ampholetic C
Peroxides D

Question # 2

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

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

Question # 3

Newland's was scientist:

Russian A
German B
English C
French D

Question # 4

Properties of metal are:

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

Question # 5

the element not known till Mandleev tabulated his periodic table:

Carbon A
Hydrogen B
Aluminum C
Germanium D

Question # 6

Law of triads was given by:

Al-Razi A
Dobriener B
Newland C
Mendeleev D

Question # 7

Mosley gave his periodic law in the year:

1829 A
1864 B
1871 C
1913 D

Question # 8

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 # 9

There were seven groups in periodic table proposed by:

Al-Razi A
Dobrierner B
Newland C
Mendeleev D

Question # 10

E.N. Value of fluorine is:

2.1 A
2.5 B
3.5 C
4.0 D

Question # 11

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 # 12

Sodium belongs to block of periodic table:

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

Question # 13

Hydrides are:

Ionic A
Covalent B
Intermediate C
All above D

Question # 14

Newland gave his law in the year:

1829 A
1864 B
1871 C
1913 D

Question # 15

Dobereiner gave his law in the year:

1829 A
1864 B
1871 C
1931 D

Question # 16

Alkali and alkaline earth metals are basic oxides except:

Li A
Be B
Fr C
Ba D

Question # 17

Ionization energy of sodium is (Kj/mol)

503 A
523 B
513 C
524 D

Question # 18

Oxidation state of boron, aluminium and gallium is:

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

Question # 19

Newland's gave law:

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

Question # 20

Mendeleev was a scientist:

Russioan A
German B
English C
French D

Question # 21

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

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

Question # 22

Newland said, every eight element repeats properties of element:

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

Question # 23

The periodic function of properties of elements is their atomic number

Al-Razi A
Mosley B
Newland C
Mendeleev D

Question # 24

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

Al-Razi A
Dobriener B
Newland C
Mendeleev D

Question # 25

Law of octaves was given by:

Al-Razi A
Dobriener B
Newland C
Mendeleev D

Question # 26

Electron affinity value from higher to heavier element:

Increase A
Decreases B
remains same C
Not effect D

Question # 27

Period Number 6 contains elements in it:

2 A
8 B
18 C
32 D

Question # 28

Binary compounds of hydrogens are called:

Halides A
Hydrides B
Oxides C
Nitrides D

Question # 29

Oxidation state of an element in free state is:

Its numebr of elemtrons lost A
Its number of electrons gained B
zero C
Its number of electrons shared D

Question # 30

Mendeleev gave his periodic law in the year:

1829 A
1864 B
1871 C
1913 D

Sr.#	Question	Answer
1	the element not known till Mandleev tabulated his periodic table:	A. Carbon B. Hydrogen C. Aluminum D. Germanium
2	E.N. Value of fluorine is:	A. 2.1 B. 2.5 C. 3.5 D. 4.0
3	Binary compounds of hydrogens are called:	A. Halides B. Hydrides C. Oxides D. Nitrides
4	Ionization energy of sodium is (Kj/mol)	A. 503 B. 523 C. 513 D. 524
5	Newland said, every eight element repeats properties of element:	A. 1st B. 2nd C. 3rd D. 4th
6	Oxidation state of an element in free state is:	A. Its numebr of elemtrons lost B. Its number of electrons gained C. zero D. Its number of electrons shared
7	Law of octaves was given by:	A. Al-Razi B. Dobriener C. Newland D. Mendeleev
8	Oxidation state of boron, aluminium and gallium is:	A. +1 B. +2 C. +3 D. +5
9	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.
10	Scientist(s) made contributions in the field designing a periodic table	A. Newland B. Dobriener C. Mendeleev & Mosley D. All of these

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