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Zincs and Its Compounds



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Q1. Pure zinc in metallic form was discovered by a __________ chemist.

(a) Persian
(b) Indian
(c) American
(d) German

Q2. Zinc is ___________ in colour.

(a) black
(b) yellow
(c) bluish-silver
(d) red

Q3. The melting point of zinc is __________

(a) 1495?C
(b) 1445?C
(c) 787.1?C
(d) 787.1?F

Q4. Zinc is an element that is being used fairly recently.

(a) True
(b) False
(c) Both acidolysis and aldehyde
(d) None of the mentioned

Q5. Which of the following are ores of zinc?

(a) Cobaltite
(b) Erythrite
(c) Marmatite
(d) Litharge

Q6. Zinc is alloyed with which of the following elements frequently?

(a) Vanadium
(b) Copper
(c) Helium
(d) Rutherfordium

Q7. Zinc is a non-lustrous element.

(a) True
(b) False
(c) Both acidolysis and aldehyde
(d) None of the mentioned

Q8. Zinc in the form of ores can be found in which of the following places?

(a) Antarctica
(b) Canada
(c) Canada and Russia
(d) Russia and Antarctica

Q9. The density of Zinc is ____________ at room temperature.

(a) 2.7 gram per cubic centimetre
(b) 6.52 gram per cubic centimetre
(c) 7.14 gram per cubic centimetre
(d) 0.44 gram per cubic centimetre

Q10. The atomic number of zinc is ___________

(a) 25
(b) 13
(c) 104
(d) 30


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Highest (+7) Oxidation State Is Shown By

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Highest (+7) Oxidation State Is Shown By

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The Outer Electron Configuration Of Gd (At. No. 64) Is

Modified 308 Year Ago

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The Outer Electron Configuration Of Gd (At. No. 64) Is

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A Metal Gets Coated With A Green Basic Carbonate When Exposed At Atmosphere. Metal Is

Modified 3 Year Ago

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3 Year Ago

A Metal Gets Coated With A Green Basic Carbonate When Exposed At Atmosphere. Metal Is

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A Transition Element X Has A Configuration [Ar]3d4 In Its + 3 Oxidation State. Its Atomic Number Is

Modified 237 Year Ago

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237 Year Ago

A Transition Element X Has A Configuration [Ar]3d4 In Its + 3 Oxidation State. Its Atomic Number Is

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The General Electronic Configuration Of Transition Elements Is

Modified 239 Year Ago

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239 Year Ago

The General Electronic Configuration Of Transition Elements Is

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230 views

A Red Solid Is Insoluble In Water. However It Becomes Soluble If

Modified 308 Year Ago

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308 Year Ago

A Red Solid Is Insoluble In Water. However It Becomes Soluble If

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The Aqueous Solution Containing Which One Of The Following Ions Will Be Colourless

Modified 237 Year Ago

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237 Year Ago

The Aqueous Solution Containing Which One Of The Following Ions Will Be Colourless

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