Foundation Level-III JEE Mock Test-10(Chemistry)

Cathode is:

• Positively charged electrode

• Negatively charged electrode

• A positively charged ion formed in the electrolyte

• A negatively charged ion formed in the electrolyte

Electric bell works on the principle of:

• Chemical effect of current

• Magnetic effect of current

• Heating effect of current

• All of these

The process of depositing a thin layer of a superior metal over an inferior metal with the help of electric current is called:

• Electroplating

• Electro refining

• Electro typing

• None of these

The process of electrolysis is used in:

• Extraction of metals

• Electroplating

• Refining of metals

• All of these

The magnetic field around a current carrying coil lasts_______

• For three hours

• As longer current flows through it

• Till it's half life period

• Field is permanent

Insulators have:

• Low resistance

• High resistance

• High conductance

• All of these

A vessel consisting of electrodes and the electrolysis is called______

• Electrolyte

• Voltmeter

• Voltameter

• None of these

A weak current can be detected by replacing an electric bulb in an electric tester with:

• LED

• A coil wound over a compass needle

• LED and A coil wound over a compass needle

• None of these

Which of the following is an example of non electrolyte?

An electric fuse is connected with_______

• Neutral wire

• Live wire

• Earth wire

• All of these