Advertisements
Advertisements
Question
Select the correct answer to the statement given below:
The chemical name for dinitrogen oxide [N20].
Options
Chalk
Oxygen
Silicon
Bromine
Nitrous oxide
Advertisements
Solution
Nitrous oxide
APPEARS IN
RELATED QUESTIONS
Define: Elements
Choose the most appropriate answer
A solvent of Iodine is
Is food that we eat a mixture ?
Name: a Liquid Metal
Give three differences between metals and non-metals.
Define: Formula
State the number of atoms of CaCO3
Fill in the blank
_________ refers to the number of atoms in the molecule of an element
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:
Metals reflect light and are good conductors of electricity
Tick (√) the correct alternative from the choice given for the following statement
A non-metal which is a good conductor of electricity.
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name – a gas with a pungent, choking odour which is lighter than air
Match the statements in List I – 1 to 10 correct answers in List II-A to J.
| List I | LIst II | ||
| 1 | Fluorine and chlorine | A | Nitrogen |
| 2 | A diatomic molecule | B | Boron |
| 3 | A molecule containing the elements hydrogen and oxygen. | C | Reactants |
| 4 | A metalloid - showing properties of both metals and non-metals. | D | Chemical Formula |
| 5 | The term used for the substances which take part in the chemical reaction | E | Halogens |
| 6 | The term represents a substance by means of symbols. | F | Water |
| 7 | The term used for the substances formed as a result of a chemical reaction | G | Nitric Acid |
| 8 | A compound containing one atom of zinc and two atoms of chlorine. | H | Products |
| 9 | The chemical name for nitrogen monoxide. | I | Phosphorus |
| 10 | A polyatomic molecule. | J | Zinc Chloride |
Select the correct answer from the choice given below.
The unreactive non-metallic element
Write the names of elements from the following symbol:
Cu
Write an answer to the following question in your own words.
Which elements (metals and non-metals), compounds and mixtures do we use in our day-to-day life?
Select the correct answer to the statement given below:
A non-metal which exists in the liquid state.
Select the correct answer from A, B, C, D & E for the statement given below :
A non-metal that is lustrous.
Give an example for the elements derived from their Latin names.
______ is a mixture of gases.
