9th Chemistry Glossary Chemistry Terminologies mcqs test

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1. ........... In an electrochemical cell or electrolytic cell, the anode is the electrode where oxidation takes place.

Anode

Atmosphere

Anion

None of them

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2. .......... The Process in which a bigger molecule breaks into two or more simoler Units.

Dissociation

Distillation

None of them

Double bond

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3. .............. Solids that have indistinct Shapes , because their particle arrangements lack order.

None of them

Amorphous Solids

Alpha particles

Alloy

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4. .......... A substance that resists changes in pH when moderate amounts of Acid or base are added.

Catalyst

Buffer

None of them

Calorie

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5. ...............Water soluble hydroxide of one of the alkali metals.

Anode

Acid

None of them

Alkali

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6. .........a pure substance that consists of two or more elements chemically combined in fixed proportions .

Compound

Concentration

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Covelant bond

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7. ........the State of an atom where all electrons have the minimum energy .

None of them

Ground State

Free State

Plane State

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8. ............ The Smallest particle of an element which can take part in chemical reactions and display the chemical properties of that element.

Atomic Mass

Atom

None of them

Matter

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9. ............. A substance which can accept a proton , H from an acid

Aufbau principale

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Base

Amphoteric substance

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10. ............. The atomic Number of an element is the number of protons in its nucleus.

Atomic Mass Number

Atomic Number

Atomic Mass Unit

None of them

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11. .........the substance dissolved in a solvent to form a Solution ,its quantity in the solution is always laser.

None of them

Solvent

Solution

Solute

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12. ............. Group IIA Elements.

Allotrope

Alkali Metals

Alkaline Earths

None of them

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13. An organic compound containing the CHO group

Element

Aldehyde

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Amalgam

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14. .........a phase change wher by a solid passes directly into the gas phase without melting.

None of them

Solution

Sublimation

Suplimation

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15. ............the outer most shell of electrons .

Vander shell

Vapour shell

None of them

Valance shell

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16. .............the Branch of analytical chemistry that involves identifying , Elements, compounds and ions in samples of unknown or uncertain

Qualitative analysis

Quantative analysis

Quantum analysis

None of them

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17. .......,...see Daniel cell.

Free Cell

None of them

Galvanic Cell

Gamma rays

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18. .............the energy liberated when an element acquires an electron to form an anion.

Electron

Electronegativity

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Electron affinity

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19. .......... The Process in which a bigger molecule breaks into two or more simoler Units.

None of them

Electrolyte

Electrolysis

Electrode

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20. ........... One of the set of seven units on which the SI system is based.

Base

Beta particles

Base Unit

None of them

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