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Elements compounds and mixtures for class 6 grade

Total questions: 63

Worksheet time: 39mins

Name
Class
Date
1.

Anything that occupies space and has mass is called ?

a)

Matter

b)

Element

c)

Compound

2.

Draw a neat diagram of sprating funnel

3.

The combining capacity of an element is known as its (a)  

4.

Tungston

a)

Na

b)

Au

c)

W

d)

Hg

e)

Tg

5.

Which of these is not an element?

a)

Hydrogen

b)

Salt

c)

Chlorine

d)

sodium

6.

True or False: An element is a pure substance that cannot be broken down.

a)

True

b)

False

7.

the main component of steel is.....

a)

iron

b)

nickel

c)

chromium

d)

carbon

8.

When 2 or more elements join together, they form a ....

a)

mixture

b)

compound

c)

fusion

d)

bubblegum

9.

We represent all the known elements on the periodic table.

a)

True

b)

False

c)

Really? well, that is news to me.

10.

Plaster of Paris is often used in false ceilings and to mend broken arms. its chemical name is.....

a)

sodium chloride

b)

copper chloride

c)

calcium sulphate

d)

calcium oxide

11.

Duralumin is an alloy that is made up of

a)

aluminium, and copper

b)

aluminium and silver

c)

copper and silver

d)

aluminium and platinum

12.

A substance that is dissolved in a solvent to form a solution is called as......

a)

salt

b)

sugar

c)

solute

d)

sublimation

13.

What is the chemical symbol for the gas that we need the most?

a)

O

b)

O2

c)

O3

d)

N4

14.

What is the ability of metals to produce a ringing sound?[ans. in small]

(a)  

15.

Which of these are methods of separation?

a)

Filtration

b)

Evaporation

c)

Freezing

d)

Fertilisation

e)

Distillation

16.

The process of making sedimentation faster (a)  

17.

Which contains a pure substance? (Choose all)

a)

A

b)

B

c)

C

d)

D

18.

Which is a heterogeneous mixture? (Choose all)

a)

1

b)

2

c)

3

d)

4

19.

diagram "a" is an example of a(n)

a)

element

b)

compound

c)

mixture

20.

What does this illustrate

a)

Elements

b)

Compunds

c)

Mixture of Elements and Compunds

d)

Mixture of Compounds

21.

Metals can be beaten into

a)

atom

b)

molecule

c)

acid

d)

sheet

22.

The symbol for Chromium is

a)

Cu

b)

C

c)

Cr

d)

Ca

23.

Write the Latin name for Tin



(a)  

24.

Non metals definition. Choose

a)

An element which cannot be broken down into sheets or drawn into wires.

b)

The elements found in air in traces in gaseous state which do not react chemically with any other element.

c)

MAgic

25.

How many elements are there?

a)

119

b)

115

c)

118

d)

114

26.

Which of the following are forms of carbon?

a)

a foil used to roll chapatis

b)

pencil lead

c)

a shiny and strongest non metal

d)

shiny and very expensive, symbol Au

27.

there are (a)   types of molecules

28.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
29.
What is the picture displayed?
a)
atom
b)
element
c)
molecule
d)
compound
30.
Are these molecules also compounds?
a)
YES
b)
NO
31.

Riya collected a few items, but then everything got completely mixed up by the time she got home.

1) how do you separate salt from iron fillings?

(a)  

32.

Riya collected a few items, but then everything got completely mixed up by the time she got home.

3) how do you separate rocks from sand?

(a)  

33.

Who suggested figurative symbols for atoms of elements?

a)

Dimitri Mendeleev

b)

Berzelius

c)

Antoine Lavoisier

d)

John Delton

34.

What is the basic unit of an element?

a)

Compound

b)

Noble Gases

c)

Atom

d)

Metalloids

35.

Who suggested figurative symbols for atoms of elements?

a)

Dimitri Mendeleev

b)

Berzelius

c)

Antoine Lavoisier

d)

John Delton

36.

Select the latin name for the element - Sodium

a)

Natrium

b)

Calx

c)

Aurum

d)

None of these

37.

Select the latin name for the element - Lead

a)

Aurum

b)

Zinken

c)

Calx

d)

Plumbum

38.

Type the symbol for the element - Mercury

(a)  

39.

Select the symbol for the element - Silicon

a)

S

b)

Si

c)

Sa

d)

Sn

40.

Give one example where Fluorine is used.

a)

Tooth paste

b)

Swimming Pool

c)

Matchstick

d)

Utensils

41.

Type the chemical name of water

(a)  

42.

What is the symbol for Sulphate?

a)

SO2

b)

SO4

c)

So6

d)

SO8

43.

This picture represents which of the following?

a)

element

b)

compound

44.

This picture represents which of the following:

a)

element

b)

compound

45.

This picture represents which of the following?

a)

element

b)

compound

46.

This picture represents which of the following?

a)

element

b)

compound

47.

Carbon is considered an element, while carbon dioxide is considered a compound. This is because carbon dioxide is ---

a)

a gas at room temperature.

b)

made of two different elements.

c)

given off by green plants.

d)

useful to human beings

48.

Compounds are different than elements because compounds are ---

a)

combinations of two or more elements.

b)

not able to be broken down into parts.

c)

made from the same type of atoms.

d)

a pure substance; elements are not.

49.

The smallest particle of any particular type of matter is known by which of the following terms?

a)

Element

b)

Chemical

c)

Atom

d)

Compound

50.
Is Iron (Fe) an element or a compound?
a)
Element
b)
Compound
51.
How many elements are represented in the compound?
Na2CO3
a)
1
b)
2
c)
3
d)
4
52.

The chemical symbol of an element always matches the element's name.

a)

Agree

b)

Disagree

53.

NaCl is an example of a compound that contains helium and oxygen atoms.

a)

Agree

b)

Disagree

54.

Compounds have properties different from the elements that make it up.

a)

Agree

b)

Disagree

55.

Which statement best describes an element?

a)

pure, made of more than one type of atom

b)

when combined, a chemical reaction forms

c)

pure, made of only one type of atom

d)

can be broken down easily

56.

Examples are water (H2O) and carbon dioxide (CO2).

a)

elements

b)

compounds

57.

Steel generally speaking is made of

a)

iron and carbon

b)

copper and iron

c)

tin and carbon

d)

aluminum and nickel

58.

Brass is an alloy made of

a)

copper and zinc

b)

copper and tin

c)

copper and nickel

d)

copper and aluminum

59.

Steel can become stainless when alloyed with _____.

a)

chromium and nickel

b)

copper and zinc

c)

tin and lead

d)

iron aand carbon

60.

The substance that does the dissolving

a)

Solute

b)

Solvent

c)

Solution

d)

Miscibility

61.

The substance getting dissolved

a)

Solvent

b)

Solute

c)

Solution

d)

Mixture

62.
In a sample of salt water, NaCl would be considered the ______.
a)
Solution
b)
Solute
c)
Solvent
d)
Solvation
63.

Identify the solute Lemonade - it contains Water, lemon juice, and sugar

a)

water

b)

lemon juice

c)

sugar and lemon juice

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