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Ainsley - InorgChem lec (Chem. of Elements 2)

Total questions: 29

Worksheet time: 15mins

Name
Class
Date
1.

Odd one out:

a)

Ag

b)

Au

c)

Cu

d)

Co

2.

True statements about Coinage metals, except:

a)

Occur free in nature

b)

Chemically inert

c)

Malleable and ductile

d)

Easily oxidized in air

3.

Best metal for both electrical and heat conductivity.

a)

Cu

b)

Ag

c)

Au

d)

Hg

4.

Color of copper in an aqueous solution.

a)

Green

b)

Red

c)

Emerald green

d)

Blue

5.

I. When there is a too much intake of copper, it may lead to Menke’s disease. II. On the other hand, deficiency of such element may lead Wilson’s disease.

a)

Only I is correct

b)

Only II is correct

c)

Both are correct

d)

Both are incorrect

6.

Copper alloys include, except:

a)

Brass

b)

Bronze

c)

Sterling

d)

Belgian Silver

7.

Antidote for Copper toxicity:

a)

BAL

b)

Dimercaprol

c)

Penicillamine

d)

Sterling

8.

Cupric sulfate is a component these solutions used to detect reducing sugars:

a)

Fehling’s

b)

Benedict’s

c)

Barfoed’s

d)

Nylander’s

9.

The darkening of skin due to long period use of silver preparations.

a)

Shining

b)

Algeria

c)

Bordeaux

d)

Argyria

10.

Which element is considered the King of all metals?

a)

Silver

b)

Titanium

c)

Mercury

d)

Gold

11.

The only acid that can dissolve to your answer from the previous item:

a)

Selenic acid

b)

Sulfuric acid

c)

Nitric acid

d)

Citric acid

12.

Aqua Regia is also known as the King’s water. What are its components?

a)

Nitric acid

b)

Hydrochloric acid

c)

Selenic acid   

d)

Acetic acid

13.

Primary uses of Gold:

a)

For gliding and plating

b)

As dental crowns, bridges, & inlays

c)

Fungicide for swimming pools

d)

Carbon monoxide absorbent

14.

Primary uses of Zinc:

a)

Protects from corrosio

b)

Used in batteries

c)

Used for firecrackers

d)

Fixes stains

15.

A zinc compound having a 70% of Zinc oxide and is used a dental filler.

a)

Zinc-eugenol cement

b)

Zinc oxide paste

c)

Zinc oxide hard paste

d)

Zinc pyrithione

16.

True statement/s about Cadmium:

a)

Used for rust-proofing

b)

Univalent

c)

Used as an electroplate with high polish

d)

Has a similar action with Zinc but is less toxic

17.

A non-official Cadmium compound employed as “Jaune brilliant”.

a)

Cd sulfide

b)

Cd sulfate

c)

Cd sulfite

d)

Cd oxide

18.

Components of Nessler’s reagent, a test for ammonia in water.

a)

Calomel

b)

Amalgam

c)

Mayer’s reagent

d)

Potassium hydroxide

19.

Dental amalgams are a mixture of liquid mercury and a solid metal alloy, used to restore teeth after cavities are removed. What are these alloys mixed with liquid mercury?

a)

Silver

b)

Tin

c)

Copper

d)

Gold

20.

I. Yellow HgO is a fine impalpable powder containing 99.5% of HgO.

II. Green HgO is a coarse powder only containing 1% of HgO.

a)

Only I is correct

b)

Only II is correct

c)

Both are correct

d)

Both are incorrect

21.

A non-official Mercury compound that is a component of Millon’s reagent— a test for proteins.

a)

Mercurous nitrate

b)

Mercuric nitrate   

c)

Mercurous nitrite

d)

Mercuric nitrite

22.

Composition of German Silver

a)

Cu

b)

Zn

c)

Ni

d)

Ne

23.

"Blue vitriol"

a)

Cupric citrate

b)

Cupric sulfate

c)

Cupric acetate

d)

Basic cupric acetate

24.

Non-official Silver compounds, except:

a)

Ag bromide

b)

Ag oxide

c)

Ag picrate

d)

Ag nitrate

25.

Names of ZnO:

a)

Diluted Talbot's Solution

b)

Zinc white

c)

Chinese white

d)

Lassar's plain zinc paste

26.

This forms amalgams with many metals:

a)

Hg

b)

Ag

c)

Cd

d)

Zn

27.

"Parrot Green"

a)

Basic cupric acetate

b)

Cupric acetate & acetic acid

c)

Cupric acetoarsenite

d)

Cupric hydrogen arsenite

28.

Composition of Bordeaux mixture:

a)

CuSO4 ∙ 5H2O & ZnO

b)

CaO ∙ 4H2O & CuSO4

c)

CaO ∙ 5H2O & CuSO4

d)

CuSO4 ∙ 5H2O & CaO

29.

Gold's color

a)

Yellow

b)

Yellow orange

c)

Green

d)

Sunny yellow