Advertisements
Advertisements
Question
Select the correct answer from the choice in the bracket.
The least reactive metal.
Options
magnesium
silver
copper
Solution
silver
APPEARS IN
RELATED QUESTIONS
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Sand
Name: a Metal Which is brittle
Give three differences between metals and non-metals.
Define: Atom
State the number of atoms of CaCO3
Name: A form of carbon used as a gem
Fill in the blank
The most abundant element in the earth’s crust is _______.
Fill in the blank
A diatomic gaseous element is _______.
Tick (√) the correct alternative from the choice given for the following statement.
Sugar is a compound which consists of the elements
Tick (√) the correct alternative from the choice given for the following statement.
The compound used as common salt is
Tick (√) the correct alternative from the choice given for the following statement
The hardest naturally occurring substance
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 to the statement given below:
A compound containing carbon, oxygen and calcium.
Elements are made up of______ kinds of atoms.
Give an example for the elements derived from their Latin names.
Why are utensils made up of aluminium and brass?
______ is a mixture of gases.
Give an account of elements known to us.
Name the two elements which are derived from the country.
Elements contain the ______of the same kind.
