ECAT Pre Engineering Chemistry Chapter 12 MCQ Test With Answer

Question # 1

the element not known till Mandleev tabulated his periodic table:

Carbon A
Hydrogen B
Aluminum C
Germanium D

Question # 2

Mosley gave his periodic law in the year:

1829 A
1864 B
1871 C
1913 D

Question # 3

Newland said, every eight element repeats properties of element:

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

Question # 4

Hydration energy depends upon:

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

Question # 5

Binary compounds of hydrogens are called:

Halides A
Hydrides B
Oxides C
Nitrides D

Question # 6

Alkali and alkaline earth metals are basic oxides except:

Li A
Be B
Fr C
Ba D

Question # 7

Mendeleev gave his periodic law in the year:

1829 A
1864 B
1871 C
1913 D

Question # 8

Oxidation state of boron, aluminium and gallium is:

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

Question # 9

Mendeleev was a scientist:

Russioan A
German B
English C
French D

Question # 10

Element with higher oxidation state form oxides:

Acidic A
Basic B
Ampholetic C
Peroxides D

Question # 11

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

Al-Razi A
Dobriener B
Newland C
Mendeleev D

Question # 12

Ionization energy of sodium is (Kj/mol)

503 A
523 B
513 C
524 D

Question # 13

Electron affinity value from higher to heavier element:

Increase A
Decreases B
remains same C
Not effect 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

Newland's was scientist:

Russian A
German B
English C
French D

Question # 16

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 # 17

Sodium belongs to block of periodic table:

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

Question # 18

E.N. Value of fluorine is:

2.1 A
2.5 B
3.5 C
4.0 D

Question # 19

Modern Periodic table is based upon periodic function:

Atomic mass A
Mass number B
Nuclide Number C
Atomic number D

Question # 20

Law of octaves was given by:

Al-Razi A
Dobriener B
Newland C
Mendeleev D

Question # 21

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 # 22

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 # 23

Law of triads was given by:

Al-Razi A
Dobriener B
Newland C
Mendeleev D

Question # 24

Properties of metal are:

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

Question # 25

Newland gave his law in the year:

1829 A
1864 B
1871 C
1913 D

Question # 26

Dobriener's was a scientist:

Russian A
German B
English C
French D

Question # 27

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

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

Question # 28

Dobereiner gave his law in the year:

1829 A
1864 B
1871 C
1931 D

Question # 29

Which group elements are the least metallic in nature?

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

Question # 30

Periodic law was given by:

Al-Razi A
Dobriener B
Newland C
Mendeleev D

Sr.#	Question	Answer
1	E.N. Value of fluorine is:	A. 2.1 B. 2.5 C. 3.5 D. 4.0
2	Electron affinity value from higher to heavier element:	A. Increase B. Decreases C. remains same D. Not effect
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	Sodium belongs to block of periodic table:	A. S-Block B. p- block C. d- block D. f- bloci
5	Mendeleev was a scientist:	A. Russioan B. German C. English D. French
6	Dobereiner gave his law in the year:	A. 1829 B. 1864 C. 1871 D. 1931
7	The periodic function of properties of elements is their atomic number	A. Al-Razi B. Mosley C. Newland D. Mendeleev
8	Modern Periodic table is based upon periodic function:	A. Atomic mass B. Mass number C. Nuclide Number D. Atomic number
9	Newland gave his law in the year:	A. 1829 B. 1864 C. 1871 D. 1913
10	Element with higher oxidation state form oxides:	A. Acidic B. Basic C. Ampholetic D. Peroxides

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