transition metals Exam

transition metals Exam

12th Grade

23 Qs

quiz-placeholder

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transition metals Exam

transition metals Exam

Assessment

Quiz

Chemistry

12th Grade

Hard

Created by

Mohamed Awaad

Used 31+ times

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23 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

One of the following compounds its aqueous solution The chemists uses it in chemical reactions while The doctor uses in clinics.

Fehling's solution

MnO2

K2Cr2O7

KMnO4

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

To make a safe for saving money, it is preferable to use …

Titanium

steel _ vanadium

Iron _ Manganese

Nickel _ Steel

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

aluminum is a representative element with atomic number 13 that can form alloys of certain properties with many elements.

Element A forms with it an alloy that maintains durability in even high temperatures

Element B is an alloy that resists corrosion.

Which of the following statements is true ?

A as element used to protect the skin from sunlight

Element B in its pure state has no uses

It is used in very bright lamps for television photography

B With the preceding one, resists corrosion at high temperatures

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

All that has a role in protection against corrosion (rust), except

Ni

Cr

Mn

Zn

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Study the following figure and choose the following

All manganese oxides are basic oxides

scandium has both basic and acidic oxides

Fe2O3 reacts with diluted acids better than FeO

CrO reacts with diluted acids better than CrO3

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Any of the following solutions appear blue

ScCl3

CrCl3

VCl3

ZnCl2

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The transitional element ion A+x the number of electrons missing from the sublevel 4s is equal to that missing from sublevel 3d and the number of its single electrons in this case is 3 . The oxide formula in the highest oxidation state is….

AO2

AO

A2O7

A2O5

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