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MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Alkali metals and alkaline earth metals
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Identification Of Ions
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Salts
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Transition metals
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - Nitrogen
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - Sulphur
MATTER - PROPERTIES AND TRANSFORMATION: Organic Chemistry - Hydrocarbons
MATTER - PROPERTIES AND TRANSFORMATION: Principles Of Chemistry - Formulae, Moles And Equations
MATTER - PROPERTIES AND TRANSFORMATION: Principles Of Chemistry - Gaseous State
MATTER: PROPERTIES AND TRANSFORMATION: Principles Of Chemistry - Solutions and acid-base titration
PRINCIPLES OF CHEMISTRY: Electrochemistry

5/76 MCQs for:

MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Alkali metals and alkaline earth metals

What is the main industrial use of calcium carbonate (CaCO₃)?

As a cleaning agent.

In the production of cement and steel.

In the manufacture of soap.

As a food additive.

The flame colour of Na+ ion is:

Crimson.

Lilac.

Golden yellow.

Brick red.

Alkali metals react with water to form:

Hydrogen gas only.

Corresponding hydroxides only.

Corresponding hydroxides and hydrogen gas.

Corresponding oxides and hydrogen gas.

When Mg is placed in KCl,.

Mg_(s) + KCl_2(aq) → Mg_(s) + K + Cl_2(aq).

Mg_(s) + KCl_2(aq) → K(s) + MgCl_2(aq).

None is correct.

Mg_(s) + KCl_2(aq) → No reaction.

Which element does not react with cold water to form the corresponding hydroxide?

Magnesium.

Potassium.

Sodium.

Calcium.