Basic Science Test 1

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Basic Science Test 1

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Weekly Quiz Competition

Question 1
1 / -0

Which one of the following properties changes with valency?

A
Atomic weight

B
Equivalent weight

C
Molecular weight

D
Density
Question 2
1 / -0

An atom of carbon has 6 protons. Its mass number is 12. How many neutrons are present in an atom of carbon ?

A
12

B
6

C
10

D
14
Question 3
1 / -0

Consider the following statements
1) The neutron was discovered in 1932 by bombarding beryllium with $$ \alpha$$-rays.
2) The electron and proton have equal but opposite electron charges.
3) The neutron is not charged.
Which of the statements given above are correct ?

A
1 and 2

B
2 and 3

C
1 and 3

D
1 , 2 and 3
Question 4
1 / -0

Which one of the following is also called stranger gas __________.

A
Argon

B
Neon

C
Xenon

D
Nitrous oxide
Question 5
1 / -0

Which of the following statements is correct ?

A
Rutherford's alpha- particle scattering experiment led to the discovery of electron.

B
JJ Thomson suggested that the nucleus of atom contains protons .

C
The atomic number of an element is the same as the number of protons in the nucleus of its atom.

D
The mass number of an atom is equal to the number of electrons in its shells.
Question 6
1 / -0

How many cubic centimetres $$(cm^3)$$ are in a cubic metre $$(m^3)$$?

A
$$10^3$$

B
$$10^6$$

C
$$10^9$$

D
$$10^{12}$$

Solution

Cubic meter is a metric volume unit and defined as the volume of a cube with sides are 1 meter in length.
Cubic centimeter is a metric volume unit and defined as the volume of a cube with sides are 1 centimeter in length.
1 cubic meter equals to one million cubic centimeters
i.e. $$1m^3$$ = $$10^6cm^3$$
Question 7
1 / -0

Consider the following statements
1) the positive charge is essentially immovable because it contains practically all the mass of the atom.
2) Atom is the smallest indivisible particles of an element which takes part in a chemical reaction
Which of the above is / are correct ?

A
Only 1

B
Only 2

C
1 and 2

D
None of these
Question 8
1 / -0

Consider the following statements
1) Clusters of atoms that act as an ion are called polyatomic ions.
2) In ionic compounds , the charge on each ion is used to determined the chemical formula of the compound.
Which of the statement(s) given above is / are correct ?

A
Only 1

B
Only 2

C
1 and 2

D
None of these
Question 9
1 / -0

The most of the mass of the atom can be found in_______.

A
electrons

B
charges

C
nucleus

D
electron colud
Question 10
1 / -0

Human wants are ___________.

A
One thousand

B
Few

C
FewInnumerable

D
Countable

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Re-Attempt Weekly Quiz Competition

Basic Science Test 1

Result

Basic Science Test 1

Score

-

Rank

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SHARING IS CARING

Question 1

Atomic weight

Equivalent weight

Molecular weight

Density

Question 2

12

6

10

14

Question 3

1 and 2

2 and 3

1 and 3

1 , 2 and 3

Question 4

Argon

Neon

Xenon

Nitrous oxide

Question 5

Rutherford's alpha- particle scattering experiment led to the discovery of electron.

JJ Thomson suggested that the nucleus of atom contains protons .

The atomic number of an element is the same as the number of protons in the nucleus of its atom.

The mass number of an atom is equal to the number of electrons in its shells.

Question 6

$$10^3$$

$$10^6$$

$$10^9$$

$$10^{12}$$

Solution

Question 7

Only 1

Only 2

1 and 2

None of these

Question 8

Only 1

Only 2

1 and 2

None of these

Question 9

electrons

charges

nucleus

electron colud

Question 10

One thousand

Few

FewInnumerable

Countable

User

Question Analysis

My Perfomance

Score

-

Rank

-

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