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प्रश्न
Select the correct answer to the statement given below:
The chemical name for dinitrogen oxide [N20].
विकल्प
Chalk
Oxygen
Silicon
Bromine
Nitrous oxide
उत्तर
Nitrous oxide
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संबंधित प्रश्न
Choose the most appropriate answer
A solvent of Iodine is
Name: a Liquid Non-metal
Define a pure substance. How many types of pure substances do you know?
Define: Atom
Fill in the blank
A metal which is a poor conductor of electricity is _______.
Indicate whether the following statement is true or false:
A compound is made up of just one kind of atom
Indicate whether the following statement is true or false:
Molecules can exist independently.
Tick (√) the correct alternative from the choice given for the following statement.
Sand is a compound of
Tick (√) the correct alternative from the choice given for the following statement
The most ductile metal.
Complete the statement given below by filling in the blanks with the correct words.
Atom contains ________ , with positively charged _____.
Complete the statement given below by filling in the blanks with the correct words.
From the elements – He, Br, Pt, and O; the element which is metallic is ____, an inert element is ____, forms a triatomic molecule is ____, is liquid at room temperature is_ ___.
Select the correct answer from the choice given below.
A group of atoms of elements
Give a reason for the following statement:
Components in a mixture are present in varying proportions and not in a fixed proportion.
State why brass is considered as a homogenous mixture while a mixture of iron & sulphur – heterogenous.
Select the correct answer from A, B, C, D & E for the statement given below :
A metalloid.
Select the correct answer from A, B, C, D & E for the statement given below :
A non-metal that is lustrous.
Give a reason for the following statement :
The filter paper made into a cone & placed in a funnel for filtering out the solid particles in a solid-liquid mixture should be moistened before placing it.
Non-metal conducting electricity :______ :: Metal conducting electricity : Copper
Name the constituents of water.
Give the chemical formula for cane sugar.
