Advertisements
Advertisements
प्रश्न
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Sand
Advertisements
उत्तर
Silicon dioxide (Sand) — SiO2
APPEARS IN
संबंधित प्रश्न
Choose the most appropriate answer
A solvent of Iodine is
Write true or false
All pure substances have characteristic melting and boiling points.
Find the atomicity of the Following molecule:
Calcium Chloride
Complete the statement given below by filling in the blank with the correct word.
An element is a pure substance which cannot be broken down by physical or _________ methods.
Complete the statement given below by filling in the blanks with the correct words.
Atom contains ________ , with positively charged _____.
Select the correct answer from the choice given below.
The type of molecule- bromine
Non-metal conducting electricity :______ :: Metal conducting electricity : Copper
Higher Order Thinking Skills.
In the diagram given below, the circle, square and triangle represent the atoms of different elements.
Identify all combinations that represent
- molecule of a compound
- molecule of an element consisting of two atoms
- molecule of an element consisting of three atoms
Classify the substances given in Fig. 2.2 into elements and compounds
Reason out
Elements are called semimetals.
