ECAT Pre Engineering Chemistry Chapter 12 MCQ Test With Answer

Question # 1

There were seven groups in periodic table proposed by:

Al-Razi A
Dobrierner B
Newland C
Mendeleev D

Question # 2

Properties of metal are:

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

Question # 3

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 # 4

Law of octaves was given by:

Al-Razi A
Dobriener B
Newland C
Mendeleev D

Question # 5

the element not known till Mandleev tabulated his periodic table:

Carbon A
Hydrogen B
Aluminum C
Germanium D

Question # 6

E.N. Value of fluorine is:

2.1 A
2.5 B
3.5 C
4.0 D

Question # 7

Mosley gave his periodic law in the year:

1829 A
1864 B
1871 C
1913 D

Question # 8

Element with higher oxidation state form oxides:

Acidic A
Basic B
Ampholetic C
Peroxides D

Question # 9

Periodic law was given by:

Al-Razi A
Dobriener B
Newland C
Mendeleev D

Question # 10

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

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

Question # 11

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 # 12

Ionization energy of sodium is (Kj/mol)

503 A
523 B
513 C
524 D

Question # 13

Period Number 6 contains elements in it:

2 A
8 B
18 C
32 D

Question # 14

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

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

Question # 15

Law of triads was given by:

Al-Razi A
Dobriener B
Newland C
Mendeleev D

Question # 16

Newland said, every eight element repeats properties of element:

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

Question # 17

Hydrides are:

Ionic A
Covalent B
Intermediate C
All above D

Question # 18

Mendeleev was a scientist:

Russioan A
German B
English C
French D

Question # 19

Which group elements are the least metallic in nature?

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

Question # 20

Sodium belongs to block of periodic table:

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

Question # 21

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 # 22

Hydration energy depends upon:

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

Question # 23

Newland's gave law:

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

Question # 24

Dobriener's was a scientist:

Russian A
German B
English C
French D

Question # 25

Electron affinity value from higher to heavier element:

Increase A
Decreases B
remains same C
Not effect D

Question # 26

Mendeleev gave his periodic law in the year:

1829 A
1864 B
1871 C
1913 D

Question # 27

Binary compounds of hydrogens are called:

Halides A
Hydrides B
Oxides C
Nitrides D

Question # 28

Alkali and alkaline earth metals are basic oxides except:

Li A
Be B
Fr C
Ba D

Question # 29

Dobereiner gave his law in the year:

1829 A
1864 B
1871 C
1931 D

Question # 30

The periodic function of properties of elements is their atomic number

Al-Razi A
Mosley B
Newland C
Mendeleev D

Sr.#	Question	Answer
1	Properties of metal are:	A. Malleable and ductile B. Form basic oxides C. Tamish in air D. All are true
2	Newland's gave law:	A. Triad's law B. Octaves law C. Period law D. Moderen periodic law
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	Newland's was scientist:	A. Russian B. German C. English D. French
5	The periodic function of properties of elements is their atomic number	A. Al-Razi B. Mosley C. Newland D. Mendeleev
6	Modern Periodic table is based upon periodic function:	A. Atomic mass B. Mass number C. Nuclide Number D. Atomic number
7	Element with higher oxidation state form oxides:	A. Acidic B. Basic C. Ampholetic D. Peroxides
8	Periodic law was given by:	A. Al-Razi B. Dobriener C. Newland D. Mendeleev
9	Hydration energy depends upon:	A. Change of Ion B. Size of Ion C. Charge to size ratio D. Heat changes
10	Period Number 6 contains elements in it:	A. 2 B. 8 C. 18 D. 32

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