Chemistry

Sodium chloride cannot conduct electricity in the solid state because it

A. is a normal salt B. is highly soluble in water C. is an electrovalent compound D. does not have…

5 years ago

Alums are classified as?

A. simple salt B. acid salts C. anhydrous salts D. double salts E. basic salts Correct Answer: Option D -…

5 years ago

Consider the reaction represented by the equation below: XO + YO → X + YO2 In the reaction, YO acts as?

A. an acidic oxide B. a basic oxide C. a reducing agent D. a weak base E. an oxidizing agent…

5 years ago

A positive brown ring test indicates the presence of?

A. NO3 B. Fe3+ C. SO2¯³ D. CU+ E. NO2‾ Correct Answer: Option A - NO3

5 years ago

The most suitable method for preparing lead (ll) chloride is by?

A. action of dilute HCI on PbSO4 B. acts of dilute HCI on lead C. action of dilute HCI on…

5 years ago

A weak acid is one which?

A. Is not corrosive B. Is slightly ionized in water C. Does not produce salts with alkalis D. Does not…

5 years ago

What is the percentage by mass of copper in copper in copper (l) oxide (CU2O)? [O = 16; CU =64]

A. 88.9% B. 80.0% C. 66.7% D. 20.0% E. 11.1% Correct Answer: Option A - 88.9%

5 years ago

Which of the following cannot be deduced from the electronic configuration of a transition metal?

A. Possession of magnetic property B. Ability to form complex ions C. Position in the Periodic Table D. Variable oxidation…

5 years ago

Which of the following molecules is linear in shape?

A. CH4 B. H2O C. NH3 D. H2S E. CI2 Correct Answer: Option E - CI2

5 years ago