Inorganic Chemistry

Question 1

Which of the following is the oxidation state of chromium in potassium dichromate (K2Cr2O7)?

Accepted Answer

+6

Answer

+2

Answer

+3

Answer

+7

Question 2

What is the geometry of the ammonia (NH3) molecule according to the VSEPR theory?

Accepted Answer

Trigonal pyramidal

Answer

Linear

Answer

Trigonal planar

Answer

Tetrahedral

Question 3

Which compound is known as quicklime?

Accepted Answer

Calcium oxide

Answer

Calcium carbonate

Answer

Calcium hydroxide

Answer

Calcium chloride

Question 4

Which of the following elements is a transition metal?

Accepted Answer

Iron

Answer

Sulfur

Answer

Sodium

Answer

Phosphorus

Question 5

What type of bond exists in sodium chloride (NaCl)?

Accepted Answer

Ionic bond

Answer

Covalent bond

Answer

Metallic bond

Answer

Hydrogen bond

Question 6

Which gas is evolved when zinc reacts with dilute hydrochloric acid?

Accepted Answer

Hydrogen

Answer

Oxygen

Answer

Nitrogen

Answer

Carbon dioxide