ECAT Pre Engineering Chemistry Chapter 12 MCQ Test With Answer

Question # 1

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 # 2

Which group elements are the least metallic in nature?

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

Question # 3

Newland's was scientist:

Russian A
German B
English C
French D

Question # 4

Dobriener's was a scientist:

Russian A
German B
English C
French D

Question # 5

Mosley gave his periodic law in the year:

1829 A
1864 B
1871 C
1913 D

Question # 6

Oxidation state of boron, aluminium and gallium is:

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

Question # 7

Electron affinity value from higher to heavier element:

Increase A
Decreases B
remains same C
Not effect D

Question # 8

Sodium belongs to block of periodic table:

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

Question # 9

Element with higher oxidation state form oxides:

Acidic A
Basic B
Ampholetic C
Peroxides D

Question # 10

Law of octaves was given by:

Al-Razi A
Dobriener B
Newland C
Mendeleev D

Question # 11

Alkali and alkaline earth metals are basic oxides except:

Li A
Be B
Fr C
Ba D

Question # 12

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

Al-Razi A
Dobriener B
Newland C
Mendeleev D

Question # 13

Dobereiner gave his law in the year:

1829 A
1864 B
1871 C
1931 D

Question # 14

Hydrides are:

Ionic A
Covalent B
Intermediate C
All above D

Question # 15

Binary compounds of hydrogens are called:

Halides A
Hydrides B
Oxides C
Nitrides D

Question # 16

E.N. Value of fluorine is:

2.1 A
2.5 B
3.5 C
4.0 D

Question # 17

Period Number 6 contains elements in it:

2 A
8 B
18 C
32 D

Question # 18

Law of triads was given by:

Al-Razi A
Dobriener B
Newland C
Mendeleev D

Question # 19

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

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

Question # 20

Mendeleev was a scientist:

Russioan A
German B
English C
French D

Question # 21

Properties of metal are:

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

Question # 22

Mendeleev gave his periodic law in the year:

1829 A
1864 B
1871 C
1913 D

Question # 23

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

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

Question # 24

the element not known till Mandleev tabulated his periodic table:

Carbon A
Hydrogen B
Aluminum C
Germanium D

Question # 25

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 # 26

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 # 27

The periodic function of properties of elements is their atomic number

Al-Razi A
Mosley B
Newland C
Mendeleev D

Question # 28

Newland's gave law:

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

Question # 29

Hydration energy depends upon:

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

Question # 30

There were seven groups in periodic table proposed by:

Al-Razi A
Dobrierner B
Newland C
Mendeleev D

Sr.#	Question	Answer
1	Sodium belongs to block of periodic table:	A. S-Block B. p- block C. d- block D. f- bloci
2	E.N. Value of fluorine is:	A. 2.1 B. 2.5 C. 3.5 D. 4.0
3	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.
4	First of all, idea of groups and periods was introduced by:	A. Al-Razi B. Dobriener C. Newland D. Mendeleev
5	Mendeleev gave his periodic law in the year:	A. 1829 B. 1864 C. 1871 D. 1913
6	Mendeleev was a scientist:	A. Russioan B. German C. English D. French
7	Electron affinity value from higher to heavier element:	A. Increase B. Decreases C. remains same D. Not effect
8	Modern Periodic table is based upon periodic function:	A. Atomic mass B. Mass number C. Nuclide Number D. Atomic number
9	Hydrides are:	A. Ionic B. Covalent C. Intermediate D. All above
10	Newland's was scientist:	A. Russian B. German C. English D. French

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