a glass rod

You can electrify a glass rod by rubbing it with silk. Suspend such an electrified rod by a silk thread as shown in figure. If you bring another glass rod electrified in the same manner, you will notice that the rods repel each other..

Electric Charge - It is very difficult to define, what an electric charge is? The word 'electric' is derived from the Greek word 'elektron' meaning amber. The existence of charges were known when charged particles were produced by rubbing (due to friction) of suitable materials. These facts are dem..

A glass rod, dipped in concentrated hydrochloric acid when introduced into ammonia gas, produces thick white fumes of ammonium chlorid..

Two Kinds of Electric Charges - You can electrify a glass rod by rubbing it with silk. Suspend such an electrified rod by a silk thread as shown in figure. If you bring another glass rod electrified in the same manner, you will notice that the ..

When a glass rod dipped in silver nitrate solution, is introduced into a test tube containing hydrogen chloride gas, a white precipitate is seen on the glass rod..

Charging by Friction - Keeping in mind the structure of the atom, we can easily explain charging by rubbing. When glass rod is rubbed with silk, some of the electrons from the atoms on glass are transferred to silk. Because there is a deficiency of electrons in the ..

A small piece of sodium is heated gently in an ignition tube till the sodium melts. About 50 to 60 mg of the organic compound is added to this and the tube heated strongly for 2-3 minutes to fuse the material inside it. After cooling, the tube is carefully broken in a china dish containing about 2..

The hot saturated solution is filtered using a fluted filter paper for quick filtration, placed in a glass funnel or by hot water funnel to prevent crystallization during filtration. Filtration using a Filtration using hot waterfluted filter paperFig: 16.1 - Filtrat..

Tests for Ammonia - Following are the tests for ammonia: 1. Ammonia gas has a characteristic pungent, irritating odour. 2. It changes the colour of: a) Moist red litmus paper blue. b) Turmeric paper brown. c) Methyl orange yellow. d) Colourless phenolphthalein deep pink. 3. A glass r..

Leclanche cell of an outer glass vessel which is filled with saturated ammonium chloride (NH 4 Cl) solution. In it there stands a zinc rod and porous pot 'P' containing a carbon rod 'c' which is packed round with a mixture of manganese dioxide (MnO 2 ) and powdered ca..