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Basic Chemistry Online Exam Quiz

Important questions about Basic Chemistry. Basic Chemistry MCQ questions with answers. Basic Chemistry exam questions and answers for students and interviews.

'Atom' name was given by

Options

A : a. Democritus

B : b. Bohr

C : c. Rutherford

D : d. Archimedes

Number of unstable isotopes are

Options

A : a. 300

B : b. 50

C : c. 370

D : d. 360

Empirical formula of benzene is similar to

Options

A : a. water

B : b. glycerin

C : c. hydrogen peroxide

D : d. glucose

Relative number of ions in mass spectrometer is plotted as

Options

A : a. shells

B : b. z axis

C : c. abscissa

D : d. ordinate

Isotopes present in nature are

Options

A : a. 270

B : b. 280

C : c. 290

D : d. 300

Relationships which can be studied by stoichiometry are

Options

A : a. 6

B : b. 5

C : c. 4

D : d. 3

A macromolecule found in blood is

Options

A : a. Ferritin

B : b. albumin

C : c. Hemoglobin

D : d. Keratin

Ascorbic acid is another name for vitamin

Options

A : a. A

B : b. B

C : c. C

D : d. D

Ions having positive charges are

Options

A : a. captions

B : b. anions

C : c. molecules

D : d. atoms

Mass of one mole of water molecule is

Options

A : a. 22g

B : b. 28g

C : c. 20g

D : d. 18g

Number of isotopes which oxygen atom has, are

Options

A : a. three

B : b. five

C : c. nine

D : d. two

C?H?O? is empirical formula for vitamin

Options

A : a. C

B : b. A

C : c. B

D : d. D

Moleis defined as mass of an element divided by

Options

A : a. Molar mass

B : b. atomic number

C : c. atomic mass

D : d. empirical formula

Ordinary microscope can measure up to

Options

A : a. 400nm

B : b. 500nm

C : c. 200nm

D : d. 700nm

Molecules expressed by formula unit mass are

Options

A : a. atoms

B : b. neutral gases

C : c. covalent

D : d. ionic

Positive ion formation is

Options

A : a. Exothermic

B : b. Endothermic

C : c. no energy

D : d. neutral

Modern method for separation of isotopes is

Options

A : a. laser separation

B : b. chromatography

C : c. ionization

D : d. X-ray

Formation of negative ion is

Options

A : a. Exothermic

B : b. Endothermic

C : c. energy less

D : d. neutral

In new spectrometers each ion hits a

Options

A : a. Detector

B : b. ionizer

C : c. collector

D : d. graph

Reactant which controls amount of products is

Options

A : a. deficient reactant

B : b. limiting reactant

C : c. excess reactant

D : d. none of these

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