Category: Chemistry Mcqs

The number of atoms in a molecule determines________________?

Hamad Diagnostic Test 15/09/2020

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A. macromolecule
B. macromolecule
C. molecularity
D. atomicity

Which of the following cannot exist in solution_________________?

Hamad Periodic Classification 14/09/2020

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A. O-2
B. H+
C. Cl-
D. Na+

Dempsters mass spectrometer has number of zones / parts_________________?

Hamad Chemistry Basic Concept 12/09/2020

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A. 5
B. 4
C. 3
D. 2

Which compound will readily undergo sulphonation ?

Hamad Aromatic Hydrocarbons 12/09/2020

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A. Benzene
B. Nitro benzene
C. Toluene
D. Chlorobenzene

Which one is natron ?

Hamad S-BLOCK ELEMENTS 12/09/2020

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A. Na2CO3
B. Na2CO3.10H2O
C. Na2CO3.H2O
D. NaHCO3

In which compound of Xenon the oxidation state of Xenon is + 6?

Hamad The Halogens and The Noble Gases 11/09/2020

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A. XeF4
B. XeOF4
C. XeOF2
D. Na4XeO6

Cement is a mixture of so many compounds roasted in rotary kiln. Which substances has greater percentage ?

Hamad Common Chemical Industries 11/09/2020

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A. Lime (CaO)
B. Silica (SiO2)
C. Alumina (Al2O3)
D. Magnesia (MgO)

A solution has pH = 0 its H+ ion concentration is__________________?

Hamad Chemistry Basic Concept 09/09/2020

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A. 1 x 10-1
B. 1 x 10-14
C. 1 x 10-7
D. 1

The relationship between energy of a photon of light and its frequency is given by________________?

Hamad Atomic Structure 08/09/2020

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A. de-Broglie duel nature of matter
B. Bohrs model
C. Plancks Quantum theory
D. Rutherfords atomic model

Which of the following statements is true about plasma________________?

Hamad Gases 05/09/2020

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A. It may be the first state of matter
B. It is not a phase transition
C. It is a conductor of electricity
D. All of the above