2026 second term mid-term test on Chemistry SS1

Welcome to your 2026 second term mid-term test on Chemistry SS1

Electrons are usually lost by

Tendency of atoms to acquire 8 electrons in their valence shell is

When magnesium react with oxygen, nature of bond formed is

Metals and non-metals combine to give electronic configuration of

Nitrogen molecule is formed by mutually sharing of ..... pair of electrons.

Which of the following follows the Law of Conservation of Mass in a chemical equation?

Which state of matter are the particles held by strong cohesive force?

What does the symbol $(aq)$ represent when placed after a chemical formula in an equation?

Which of the following is a decomposition reaction?

When balancing an equation, why is it incorrect to change the subscripts in a chemical formula?

Subjective

1.........and 2........are types of covalent bonds.

3.........and 4..........are types of chemical bonds.

5. .........is another name for electrovalent bond

Essay Answer All 1a. What is Chemical Combination? 1b. List and explain two types of chemical bonds. 1c. Show the formation of Ammonia

2a Calculate the percentage by mass of sulphur in Copper sulphate, Cursor. {Cu=63.5 S=32, O=16} 2b. Balance this equation NH3 + O2 >> NO2 + H2O

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