Advertisements
Advertisements
प्रश्न
Name the technique that you use if only the solid component of a solution is required.
Advertisements
उत्तर
Evaporation.
APPEARS IN
संबंधित प्रश्न
Define: Elements
Write true or false
All pure substances have characteristic melting and boiling points.
Correct the following statement:
CO and Co both represents cobalt.
Give one example for the following types of mixtures :
solid-liquid heterogenous mixture.
Classify the following substances into elements and compounds
Mercury, sulphur, sugar, water, sand, gold, carbon, oxygen, alcohol, iron, marble, baking soda.
Give the symbols of: Carbon, calcium, copper, chlorine, cobalt, argon.
Give one use of the following substance:
Coal
Answer the following question:
What do you understand by the statement: ‘metals are ductile and malleable’?
Answer the following question:
When iron is mixed with sulphur at room temperature, it does not form a compound. Why?
Find the atomicity of the Following molecule:
Aluminium Suiphide
Fill in the blank
The most abundant element in the atmosphere is _______.
Tick (√) the correct alternative from the choice given for the following statement.
Atoms of different kinds combine to form molecules of
Tick (√) the correct alternative from the choice given for the following statement
A gaseous non-metal.
Select the correct answer from the choice given below.
The negatively charged particles in an atom
Write the names of elements from the following symbol:
Si
Select the correct answer to the statement given below:
The chemical name for dinitrogen oxide [N20].
State five different characteristics of compounds.
Select the correct answer from A, B, C, D & E for the statement given below :
A metalloid.
