Question # 1

In physical and chemical properties, transition elements show

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Similarities

Dissimilarities

Both of these

Somestimes similarities, sometimes dissimilarities

In the extraction of iron, slag is produced which is

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CO

FeSiO₃

MgSiO₃

CaSiO₃

Out of 110 known elements, transition elements are

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40

60

50

80

Choose the correct answer of transition elements?

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Transition elements have low melting points

Transition elements do not have catalytic activity

Transition elements exhibit variable oxidation states

Transition elements exhibit inert pair effect

Which of the following is used as disinfectant

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K₂Cr₂O₇

KMnO₄

K₂MnO₄

K₂CrO₄

Oxalic acid oxidizes to:

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CO

CO₂

Oxalates

None of these

A phtotographic plate is coated with an emulsion of silver nitrate and

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AgCI

AgI

AgBr

NaNO₃

Which one of the following has highest density

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Zn

Os

Ni

Cu

Which of the following is a carbonate are?

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Pyrolusite

Malchite

Diaspore

cassiterite

Which of the following is a typical transition metal

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Sc

Y

Ra

Co

The color of Cr³⁺ion is

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Violet

Blue

Pink

Green

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ECAT Chemistry Chapter 17 Transition Elements Online Test MCQs With Answers

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