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NEET Chemistry MCQ
Carbon Family Mcq Neet Chemistry
Quiz 1
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Q.1
Thomas slag is ... [ CPMT 1988]
0%
a) Ca3(PO4)2
0%
b) CaSiO3
0%
c) FeSiO3
0%
d) Mixture of (a) and (b)
Explanation
Answer: (d)
Q.2
Which of the following is not used as pigment in paints
0%
a) Lead dioxide
0%
b) White lead
0%
c) Lead chromate
0%
d) Pb3O4
Explanation
Answer: (a)
Q.3
Which of the following shows bonds in Silicones .. [ AIIMS 1994]
0%
a) Si - Si - Si - Si
0%
b) Si -C - Si - O - Si
0%
c) Si - C - Si- C - Si
0%
d) - Si - O - Si - O - Si
Explanation
Answer: (d)
Q.4
Glass is a .... [ CBSE PMT 1991]
0%
a) Liquid
0%
b) Solid
0%
c) Supercooled liquid
0%
d) Transparent organic polymer
Explanation
Answer:(c)
Q.5
Which of the following is semiconductor .. [ CPMT 1985]
0%
a) C
0%
b) Pb
0%
c) Ge
0%
d) Sn
Explanation
Answer: (c)
Q.6
Which one of these is acidic? [ Pb. CET 1991]
0%
a) Al2O3
0%
b) SnO2
0%
c) PbO2
0%
d) SiO2
Explanation
Answer: (d)
Q.7
Identify the correct statements from the following : (a) CO2(g) is used as refrigerant for ice-cream and frozen food. (b) The structure of C60 contains twelve six carbon rings and twenty five carbon rings. (c) ZSM-5, a type of zeolite, is used to convert alcohols into gasoline. (d) CO is colorless and odourless gas. [ NEET 2020]
0%
a) (b) and (c) only
0%
b) (c) and (d) only
0%
c) (a), (b) and (c) only
0%
d) (a) and (c) only
Explanation
Answer: (b)
Q.8
Which of the following is incorrect statement? [ NEET 2019]
0%
a) PbF4 is covalent in nature
0%
b) SiCl4 is easily hydrolysed
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c) GeX4 (X = F, Cl, Br, I) is more stable than GeX2
0%
d) SnF4 is ionic in nature
Explanation
Answer: (a)
Q.9
Glass reacts with HF to produce .. [ EAMCET 1994]
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a) Na3AlF6
0%
b) H2SiF6
0%
c) H2SiO3
0%
d) SiF4
Explanation
SiO2+4HF → SiF4+2H2O Glass also gives there action SiO2 + 6HF → H2SiF6 +2H2O Answer:(d)
Q.10
The structure and hybridization of Si(CH3)4 is .. [ CBSE PMT 1996]
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a) Bent, sp
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b) trigonal, sp2
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c) Octahedral, d2sp3
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d) tetrahedral, sp3
Explanation
Answer: (d)
Q.11
The ability of a substance to assume two or more crystalline structures is called ... [ CBSE PMT 1990]
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a) Isomerism
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b) Polymorphism
0%
c) Isomorphism
0%
d) Amorphism
Explanation
Answer: (b)
Q.12
The halide which is not hydrolyzed is ... [ AFMC 1991]
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a) SiCl4
0%
b) SiF4
0%
c) CCl4
0%
d) PbCl4
Explanation
CCl4 do not have vacant d orbital to accommodate lone pair of electrons from water molecules Answer: (c)
Q.13
PbCl4 exists but PbBr4 and PbI do not, because of ... [BHU 1993]
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a) Inability of bromine and iodine to oxidize Pb+2 to Pb+4
0%
b) Be- and I- ions are bigger in size
0%
c) More electropositive nature of bromine and iodine
0%
d) Chlorine is gas
Explanation
bromine and iodine are weak oxidizing agents Answer:(a)
Q.14
Pyrex glass is a mixture of ... [ CPMT 1988]
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a) Sodium borosilicate and aluminum borosilicate
0%
b) Sodium silicate and calcium silicate
0%
c) Sodium silicate and lead silicate
0%
d) Sodium silicate and aluminum borosilicate
Explanation
Answer: (a)
Q.15
the chemical composition of white lead is ... [ Pb CET sample paper 1991]
0%
a) Na2CO3
0%
b) Pb3O4
0%
c) Pb(OH)2 . 2PbCO3
0%
d) PbO
Explanation
Answer: (c)
Q.16
Red lead is ? { Bihar CEE 1995] Hello
0%
a) PbO
0%
b) Pb3O4
0%
c) PbO2
0%
d) Pb4O3
Explanation
Answer: (b)
Q.17
White lead is [CPMT 1993]
0%
a) Basic lead nitrate
0%
b) Acidic lead carbonate
0%
c) Basic lead carbonate
0%
d) basic lead hydroxide
Explanation
white lead is basic carbonate 2PbCO3. Pb(OH)2 Answer:(c)
Q.18
Which of the following melts in boiling water.. [ MLNR 1984]
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a) Gun metal
0%
b) Wood metal
0%
c) Monel metal
0%
d) Bell metal
Explanation
Wood metal is an alloy of Bi, Pb, Sn, Cd. its melting point is 71°C Answer: (b)
Q.19
The substance used as a smoke screen in warfare is ... [ CBSE PMT 1989]
0%
a) SiCl4
0%
b) PH3
0%
c) PCl5
0%
d) Acetylene
Explanation
SiCl4 gets hydrolyzed in moist air and gives white fumes which are used as a smoke screen Answer: (a)
Q.20
Composition of glass is {CPMT 1993]
0%
a) Silica, Lime, NaCl
0%
b) Silica, lime, Na2CO3
0%
c) Silica, NaCl
0%
d) Lime, Na2CO3
Explanation
Answer: (b)
Q.21
Which of the following statements is correct with respect to the property of elements with increase in atomic number in the carbon family ( group14)? [ BHU 1994]
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a) Their metallic character decreases
0%
b) The stability of +2 oxidation state increases
0%
c) Their ionization energy increases
0%
d) their atomic size decreases
Explanation
Due to inert pair effect stability of +4 ion decreases. While stability of +2 oxidation increases with increase in atomic number Answer: (b)
Q.22
optical glass contains a high percentage of ... [ KCET 1997]
0%
a) MgO
0%
b) Al2O3
0%
c) B2O3
0%
d) PbO
Explanation
Answer:(c)
Q.23
An alloy which does not contain copper is [ DPMT 1984]
0%
a) Solder
0%
b) Bronze
0%
c) Brass
0%
d) Bell metal
Explanation
Solder contain Pb and Sn Answer: (a)
Q.24
The composition of the common glass is [ HAriyana CEET 1991]
0%
a) Na2O. CaO.6SiO2
0%
b) Na2O.Al2O3.2SiO2
0%
c) CaO.Al2O3.SiO2
0%
d) Na2O. CaO.Al2O3.6SiO2
Explanation
Answer: (a)
Q.25
The material used in solar cells contains... [ IIT 1993]
0%
a) Cs
0%
b) Si
0%
c) Sn
0%
d) Ti
Explanation
Answer: (b)
Q.26
Method used for obtaining highly pure silicon used as semiconductor material is [ CBSE PMT 1994]
0%
a) Oxidation
0%
b) Electrochemical reduction
0%
c) Crystallization
0%
d) Zone refining
Explanation
Answer:(d)
Q.27
galina is an ore of ... [ Pb. CET 1989]
0%
a) Gallium
0%
b) Lead
0%
c) Tin
0%
d) Germanium
Explanation
Answer: (b)
Q.28
Lithage is not commonly used in ... [Pb CET 1989]
0%
a) The manufacture of special glasses
0%
b) Glazing pottery
0%
c) Preparing paints
0%
d) Lead storage batteries
Explanation
PbO2 is used in lead storage battery Answer: (d)
Q.29
Which variety of glass is used for manufacture of optical glasses
0%
a) Sodium glasses
0%
b) Flint glass
0%
c) Ground glass
0%
d) Quartz glass
Explanation
Flint glass is a mixture of potassium and lead silicates used in the manufacture of optical glasses Answer: (b)
Q.30
Gun metal is an alloy of .. [ EAMCET 1995]
0%
a) Mg, Sn, Zn
0%
b) Cu, Ni, An
0%
c) Cu, Sn, Zn, Pb
0%
d) Cu, Sb, Zn, Pb
Explanation
Answer:(c)
0 h : 0 m : 1 s
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