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प्रश्न
Select the correct answer from the choice in the bracket.
The positively charged particle of an atom.
विकल्प
electron
proton
neturon
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उत्तर
proton
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संबंधित प्रश्न
Fill in the blan
An ________ is a homogeneous mixture of two or more metals.
Differentiate between the following.
Filter Paper and Alum
What is the difference between a pure substance and a mixture ?
Give one example for the following types of mixtures:
liquid-gas homogenous mixture
Differentiate between:
Homogenous and heterogenous substances
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Vinegar
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Sand
Give the symbols of: Carbon, calcium, copper, chlorine, cobalt, argon.
Define: Molecule
State the number of atoms of H2SO4
Name A substance used as an insulator.
Find the atomicity of the Following molecule:
Calcium Chloride
Match the Columns:
| Column A | Column B | ||
| (a) | Metals | (i) | Non-Reactive |
| (b) | Molecules | (ii) | Brittle |
| (c) | Non-Metals | (iii) | Lustrous |
| (d) | Noble Gases | (iv) | Smallest unit of Compound |
Write the names of elements from the following symbol:
Xe
Write the names of elements from the following symbol:
Cu
Give a reason for the following statement:
Components in a mixture are present in varying proportions and not in a fixed proportion.
Differentiate between homogenous & heterogeneous mixtures.
Select the correct answer from A, B, C, D & E for the statement given below :
A non-metal that is lustrous.
Non-metal conducting electricity :______ :: Metal conducting electricity : Copper
What is the Latin name of Sodium?
