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Cee > LANGUAGE OF CHEMISTRY > Flashcards

LANGUAGE OF CHEMISTRY Flashcards

1
Q

A pure substance can only be
a.Element
b.Compound
c.Element and Compound
d.Mixture

A

c.Element and compound

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2
Q

A pure substance which contains only one types of atom is called
a.A compound
b.An element
c.Solid
d.Liquid

A

b.element

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3
Q

The father of Chemistry is
a.Priestley
b.lavoiser
c.Dalton
d.Mendeleev

A

b.Lavoiser

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4
Q

What is the symbol of Tungsten?
a.Au
b.Sb
c.Ti
d.W

A

d.W

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5
Q

What is the symbol of Tin?
a.Sn
b.Sb
c.W
d.Pb

A

a.Sn

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6
Q

What is the Latin name of mercury?
a.Hydrogyrum
b.Argentum
c.Stannum
d.Wolfram

A

a.Hydrogyrum

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7
Q

A symbol not only represents the name of the element but also it’s:
a.Atomic number
b.Atomic mass
c.Atomicity
d.Atomic volume

A

c.Atomicity (no.of atom in molecule of elements)

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8
Q

Hydrogyrum is Latin name of element
a.Mercury
b.Lead
c.Hydrogen
d.Oxygen

A

a.Mercury

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9
Q

The metal which doesn’t exist in solid state is
a.Iron
b.Lead
c.Mercury
d.Sodium

A

c.Mercury

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10
Q

Metal are characterized by
a.mallaeble and ductile
b.High melting point and high boiling point
c.Good conductor
d.all of these

A

D.all of these

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11
Q

Most metals are
a.noble
b.electropositive
c.electronegative
d.b or c

A

b.electropositive

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12
Q

Non-metal can exist in
a.solid
b.liquid
c.gaseous state
d.all are correct

A

d.all of these

Note:-
Metal cannot exist in gaseous state

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13
Q

Non metal that conduct electricity
a.white phosphorus
b.graphite
c.black phosphorus
d.both b and c

A

D.both b and c

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14
Q

Which one of the following are metalloid?
a.Au
b.As
c.Ag
d.Pt

A

b.As

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15
Q

Compounds obtained from living source.
a.inorganic subs
b.organic subs
c.non-organic subs
d.all

A

b.organic substance

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16
Q

Which is not an organic compound
a.oil
b.enzyme
c.washing soda
d.vitamins

A

c.washing soda

17
Q

Air is
a.homogenous mixture
b.heterogenous mixture
c.both
d.None

A

a.homogenous mixture

18
Q

Mixture of gases at separated by method
a.Dialysis
b.Ultra filtration
c.Atomolysis
d.Diffusion

A

c.Atomolysis

19
Q

The reaction Zn+H²SO⁴——>ZnSO⁴+H²⬆️ is an example of
a.Displacement rxn
b.Combustion rxn
c. Decomposition rxn
d.Polymerization rxn

A

a.Displacement rxn

20
Q

A photochemical reaction ________light
a.convery heat into
b.accompanied with the emissionpf
c.catayzed by
d.initiated by

A

d.initiated by ( यो चाहिन्छ)

21
Q

The term ‘atom ‘was first introduced by
a.Thomson
b.Dalton
c.Stoney
d.Avogadro

A

b.Dalton

22
Q

The total no.of element occuring naturally are:-
a.92
b.107
c.115
d.123

A

a.92

23
Q

Which one exist in free state
a.Na
b.Zn
c.Ca
d.Au

A

d.Au

24
Q

The 2nd most abundant element on Earth crust
a.Oxygen
b.Silicon
c.Al
d.Iron

A

b.Silicon

25
Q

How many protons,electrons and neutrons are present in the element?
X⁴³?
²²
a.22,21,21
b.21,21,22
c.22,22,22
d.22,21,22

A

b.21,21,22
22=e=p+=z

26
Q

The species having same atomic number but different mass number is
a.Isotopes
b.Isotones
c.Isobar
d.Isodiapher

A

a.Isotopes

🧠Note🧠
Isotopes:-
Same atomic number different atomic mass
Eg.1H¹,1 H², 1H³

Isotones
Elements with same no.of neutrons but different no.of protons

Isobar
Elements with same mass number but different atomic number
eg.18 Ar⁴⁰,19 K⁴⁰,20 Ca⁴⁰

27
Q

The no.of fundamental particles in an atom of the lightest isotope carbon are :-
a.6
b.12
c.18
d.24

A

c.18

*12 C⁶

28
Q

Na+ is isoelectronic with
a.Ca2+
b.Mg2+
c.Zn2+
d.Cu2+

A

b.Mg2+

29
Q

The fractional atomic weight of an element is because:-
a.existence of allotropic form
b.equivalent no.are whole number
c.of existence of isotope
d.valency of element has fractional value

A

c.of existence of isotope

30
Q

Isobar have same no.of
a.electron
b.protons
c.neutrons
d.Nucleons

A

d.Nucleons
Sum of protons and neutrons

31
Q

What kind of reaction occurs in the reaction
CH⁴+O²➡️CO²+H²O
a.reduction
b.combustion
c.Single displacement
d.Double displacement

A

b.Combustion
oxygen aayera

32
Q

The compound having same molecular formula but possess different properties are known as:-
a.Isotopes
b.Isomers
c.Isobar
d.Isochores

A

b.Isomers

33
Q

NH⁴CNO➡️NH²CONH²
This reaction is called
a.Elimination
b.substitution
c. rearrangement
d. Condensation

A

c. Rearrangement

34
Q

No.of electron present in CO² is:-
a.22
b.44
c.11
d.24

A

a.22

35
Q

Radius of an atomic nucleus is in the order of
a.10-⁸cm
b.10-¹⁰cm
c.10-¹²cm
d.10-¹⁵cm

A

c.10-¹²cm
Another answer
10-¹⁰m

36
Q

The no.of electrons in an atom is equal to:-
a.Atomic weight
b.Equivalent weight
c.Atomic number
d.Electron Affinity

A

c.Atomic number

37
Q

Crystallization is based on difference in their
a.BP
b.Solubility
c.MP
d.Crystal Structure

A

b.Solubility

Cee (3 decks)

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