ECAT Pre Engineering Chemistry Chapter 12 MCQ Test With Answer

Question # 1

Newland's gave law:

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

Question # 2

E.N. Value of fluorine is:

2.1 A
2.5 B
3.5 C
4.0 D

Question # 3

Element with higher oxidation state form oxides:

Acidic A
Basic B
Ampholetic C
Peroxides D

Question # 4

Dobriener's was a scientist:

Russian A
German B
English C
French D

Question # 5

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 # 6

Alkali and alkaline earth metals are basic oxides except:

Li A
Be B
Fr C
Ba D

Question # 7

Properties of metal are:

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

Question # 8

Ionization energy of sodium is (Kj/mol)

503 A
523 B
513 C
524 D

Question # 9

Sodium belongs to block of periodic table:

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

Question # 10

Mosley gave his periodic law in the year:

1829 A
1864 B
1871 C
1913 D

Question # 11

Law of triads was given by:

Al-Razi A
Dobriener B
Newland C
Mendeleev D

Question # 12

Oxidation state of boron, aluminium and gallium is:

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

Question # 13

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

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

Question # 14

Periodic law was given by:

Al-Razi A
Dobriener B
Newland C
Mendeleev D

Question # 15

Law of octaves was given by:

Al-Razi A
Dobriener B
Newland C
Mendeleev D

Question # 16

Dobereiner gave his law in the year:

1829 A
1864 B
1871 C
1931 D

Question # 17

Newland's was scientist:

Russian A
German B
English C
French D

Question # 18

Newland gave his law in the year:

1829 A
1864 B
1871 C
1913 D

Question # 19

Mendeleev gave his periodic law in the year:

1829 A
1864 B
1871 C
1913 D

Question # 20

the element not known till Mandleev tabulated his periodic table:

Carbon A
Hydrogen B
Aluminum C
Germanium D

Question # 21

Electron affinity value from higher to heavier element:

Increase A
Decreases B
remains same C
Not effect D

Question # 22

Modern Periodic table is based upon periodic function:

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

Question # 23

Hydrides are:

Ionic A
Covalent B
Intermediate C
All above D

Question # 24

Period Number 6 contains elements in it:

2 A
8 B
18 C
32 D

Question # 25

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

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

Question # 26

Binary compounds of hydrogens are called:

Halides A
Hydrides B
Oxides C
Nitrides D

Question # 27

Newland said, every eight element repeats properties of element:

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

Question # 28

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

Al-Razi A
Dobriener B
Newland C
Mendeleev 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

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

Sr.#	Question	Answer
1	Hydrides are:	A. Ionic B. Covalent C. Intermediate D. All above
2	Mendeleev gave his periodic law in the year:	A. 1829 B. 1864 C. 1871 D. 1913
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	Dobriener's was a scientist:	A. Russian B. German C. English D. French
5	Modern Periodic table is based upon periodic function:	A. Atomic mass B. Mass number C. Nuclide Number D. Atomic number
6	Ionization energy of sodium is (Kj/mol)	A. 503 B. 523 C. 513 D. 524
7	Period Number 6 contains elements in it:	A. 2 B. 8 C. 18 D. 32
8	All facts of chemistry must be in simple logical patterns because chemistry is a subject:	A. Simple B. Complex C. Un-understandable D. Easy
9	Law of triads was given by:	A. Al-Razi B. Dobriener C. Newland D. Mendeleev
10	Alkali and alkaline earth metals are basic oxides except:	A. Li B. Be C. Fr D. Ba

Latest Educational News Stories

Pakistan's Largest Database of Colleges and Universities

BS Programs

University Past Papers

University Results

Exam Results 2024

Study Abroad Programs and Opportunities for Pakistani Students