Advertisements
Advertisements
प्रश्न
What do you observe when Sulphur is heated and then tested with moist blue and red litmus – paper?
Advertisements
उत्तर
Sulphur : Blue litmus turns red.
APPEARS IN
संबंधित प्रश्न
Fill in the blank spaces by choosing the correct words from the given list.
List: amalgam, chlorine, gallium, sodium chloride, silver chloride
A gas used to sterilisation of drinking water is ________
What are oxides ?
Give two examples of metallic oxides.
Complete and balance the following chemical equation.
\[\ce{KClO3 ->[heat] ?? + O2}\]
Classify Copper oxide. Also give a balanced equation to prepare it.
Classify Sulphur dioxide. Also give a balanced equation to prepare it.
Classify Magnesium oxide. Also give a balanced equation to prepare it.
Give a reason why oiling or greasing is done on the exposed moving iron parts of machinery and not preferred on heavy stationary iron parts.
State why galvanization, tinning and chromeplating are used as three different processes for coating specific articles for prevention of rusting.
State a specific reason for using zinc in galvanizing
State a specific reason for using lead in bullets
State a specific reason for using magnesium in fireworks.
Give reason for the following:
Galvanized steel is not used for articles used for edible applications.
Give word equation for the reaction of Non-metal:
carbon
Give word equation for the reaction of Non-metal:
phosphorus
Give word equation for the reaction of metal is:
sodium
Give word equation for the reaction of metal is:
magnesium with oxygen
Name the following:
The product formed on oxidation of phosphorus.
Name the following:
The chemical name of rust.
