Question # 1

When two H atoms approach each other then forces operates.

Choose an answer

Attractive forces

Repulaive forces

Attractive and repulsive

None of above

In which of the following characteristics does hydrogen resemble halogens.

Choose an answer

Hydrogen is the lightest gas

H atoms contains one electron each

Hydrogen forms ionic hydrides with alkali metals

Hydrogen has three isotopes.

Which of the following is not a characteristic of covalent compound.

Choose an answer

They have low melting and boiling points.

They ionize on dissolution in polar solvents

Their molecules have definite geometry

They are generally insoluble in water

Which of the following elements has the highest third ionization energy.

Choose an answer

Sodium

Magnesium

Aluminum

Silicon

SO2 acts as

Choose an answer

Lewis base

Lewis acid

Botha A and B

None of above

The formula of Bauxite is.

Choose an answer

Al2O3

Al2 O3. 2H2O

AL2O3, H2O

Na3AIF6

Ten elements Sc (Z = 21) to Zn (Z = 30) fill their 4s orbitals first and then 3d orbitals are called elements. of.

Choose an answer

3 d series.

4d Series

5d Series

None of above

The ionization potential of K would be numerically equal to.

Choose an answer

Electron affinity of Ar

Electromagnetically of K

Electron affinity of K+

ionization energy of Ca

The specific gravity of H2SO4 is

Choose an answer

1.37

1.84

1.17

1.57

"Acids are substance whose aqueous solutions turned blue litmus red and tasted sour" stated by

Choose an answer

Davy

Liebig

Boyle

Rouelle

Which of the following statement is not correct.

Choose an answer

The element with highest IE belongs to group 18

In each period the element with lowest IE belongs to group I

In each period the element with highest IE is a noble gas

In the second period as we move from left to right, ionization energy increases reqularly.

The high oxidizing power of halogens is favored by.

Choose an answer

Low heat od dissociation of X2

A high electron affinity of the atom

A higher hydration energy of the ion

All of above

pKa value of hyponitrous acid is.

Choose an answer

-7.0

8.9

4.1

6.6

Is a chain silicate

Choose an answer

Olivine

Tremolite

Beryl

Zeolite

Select the correct IUPAC nae for [Co(NH3)6 ]2+

Choose an answer

Hexammoniacobaltate (II) ion

Hexaamminecobaltate (II) ion

Hexammoniacobalt (II) ion

Hexaamminecobalt (II) ion

Which one of the following ions is colourless.

Choose an answer

Cu+

Co2+

Ni2+

Fe3+

Which of the following elements with excess oxygen to form proxides.

Choose an answer

Ca

Mg

Li

Ba

Al2Cl6 is an example of

Choose an answer

Ionic bond

Covalent bond

Co ordinate bond

Metallic bond

Law of octaves was proposed by

Choose an answer

Lother meyer

D.I.Mendeleev

J.A.R. Newlands

J.W. Dobereiner

The bond between two identical non metal atoms has a pair of electrons.

Choose an answer

Unequally shared between the two

Transferred fully from one atom to another

With identical spins

Equally shared between them

Hydrogen gas will not redue

Choose an answer

Heated cupric oxide

Headed ferric oxide

Heated stannic oxide

Heated aluminium oxide

More Classes

Other Links

PPSC Chemistry Part III Inorganic Chemistry Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer