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Online Tests
Chemistry Fsc Part 2 Chapter 1 Online Test MCQs With Answers
Question # 1
Which one of the following elements burns in air to form an oxide which, when shaken with water, give a solution with a pH greater than 7.
Choose an answer
Carbon
Magnesium
sulphur
Hydrogen
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Question # 2
Fluorine is in group VIIA of periodic table. Its chemistry will most closely resembles that of.
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Argon
Boron
Iodine
Sulphur
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Question # 3
Which of the following has highest M.P
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Aluminium
Silicon
Phosphorus
Sulphur
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Question # 4
In modern periodic table VI period contains elements
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8
18
10
32
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Question # 5
The first ionization energy of Na, Mg, Al and Si are in theorder of.
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Na < Mg < Al < Si
Na > Mg> Al> Si
Na > Mg< Al< Si
Na< Mg> Al< Si
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Question # 6
Which one is an incomplete period
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4th
5th
6th
7th
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Question # 7
Who gave the law of Triads in 1829?
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Dobereiner
Mosely
Newland
Mendeleev
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Question # 8
Element of which group reacts with hydrogen and form ionic hydrides.
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II A
IV A
V A
VI A
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Question # 9
Which one of the following elements has the largest second ionization energy.
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O
Na
F
Ne
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Question # 10
Which hydride is intermediate in nature.
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NaH
BeH2
NH3
HCl
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Question # 11
Which one of the following elements burns in air to form an oxide which, when shaken with water, give sa solution with a pH greater than 7.
Choose an answer
Carbon
Magnesium
sulphur
Hydrogen
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Question # 12
In which group of periodic table is the element which has atomic number 14.
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II
IV
III
VI
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Question # 13
Which of the following statement is correct
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Na atom is smaller than Na
+
Na atom is larger than K atom
F atom is smaller than F
-
F atom is larger than F
-
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Question # 14
In a period, from left to right in the periodic table, the size of atom generally.
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Increases
decreases
Remains constant
First increase upto the middle of period and then decreases
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Question # 15
Ionic Hydrides react with water to form
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Proton
Hydride ions
Hydroxide ions
Hydronium ions
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Question # 16
What criteria did Mendeleev use in arranging his periodic table.
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Atomic mass
Atomic number
Mass number
Density
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Question # 17
Which class of elements shows law value of first ionization potential.
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Alkali metals
Alkaline earth metals
Halogens
Noble gases
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Question # 18
Which one of the following oxides is amphoteric in nature.
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MgO
Na2O
SO2
ZnO
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Question # 19
Which element when react with chlorine form polymeric halide.
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Na
Be
Ba
P
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Question # 20
Which property of hydrogen not resemble to alkali metals.
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Electronic configuration
Oxidation state
Reaction with halogen
Metallic nature
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Question # 21
Which of the following element has lowest ionization energy
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Beryllium
Boron
Carbon
Oxygen
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Question # 22
As you proceed across a period in the periodic table the first ionization energy
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Decrease
Increase
Remains constant
First increase up the middle of period and then decreases
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Question # 23
Which element has lowest melting point
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Beryllium
Magnesium
Calcium
Barium
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Question # 24
The concept of atomic number was introduced by
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Alrazi
Mendeleeve
Moseley
Dobereiner
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