Q.1. Which is a false statement? (2015)
(a) Density of diamond is much greater than that of graphite.
(b) Graphite can be converted to diamond at very high pressure.
(c) Graphite is a good lubricant.
(d) Graphite is a bad electrical conductor.
Ans. (d) Graphite is a bad electrical conductor.
Q.2. Fullerenes were first reported by (2015)
(a) Kroto and Colleagues (b) Thomson
(c) Martel (d) Bowser
Ans. (a) Kroto and Colleagues
Q.3. Helium does not show the following property: (2015)
(a) Solid helium cannot be formed
(b) Hellium-II is classed as a superfluid
(c) Helium is used as a light source in laser
(d) He2 is unstable
Ans. (b) Hellium-II is classed as a superfluid
Q.4. The following statement is not true for Frenkel defect: (2015)
(a) Frenkel defect are commonly found in ionic solids.
(b) Frenkel defects change the density of the solids.
(c) In AgBr both Schottky and Frenkel defects occur.
(d) Frenkel dcefects are found in silver halides.
Ans. (b) Frenkel defects change the density of the solids.
Q.5. What is False? (2015)
(a) H4P2O6 is tetrabasic (b) H3PO4 is tribasic
(c) H3PO3 is dibasic (d) H3PO2 is dibasic
Ans. (d) H3PO2 is dibasic
Q.6. Diborane does not show the following property: (2015)
(a) It is coloured gas (b) It is instantly hydrolysed by water
(c) It is an electron deficient compound (d) It explodes with oxygen
Ans. (a) It is coloured gas
Q.7. Trigonal bipyramid shape is shown by: (2015)
(a) I3- (b) SF6 (c) NF3 (d) NH3
Ans. (a) I3-
Q.9. Sodium Chloride structure type is shown by:
(a) MgO (b) CuCl (c) HgS (d) BaS (2015)
Ans. (a) MgO
Q.10. Group 13 element is
(a) S (b) As (c) Si (d) Tl (2015)
Ans. (d) Tl
Q.11. Which of the following has no lone pair of electrons? (2015)
(a) XeF6 (b) XeF4 (c) XeF2 (d) XeO4
Ans. (d) XeO4
Q.12. Example of orthorhombic crystal system is: (2015)
(a) K2Cr2O7 (b) ZnO (c) CaCO3 (d) TiO2
Ans. (a) K2Cr2O7
Q.13. Fullerenes do not show the following property: (2015) (a) All atoms in C60 are equivalence
(b) All bonds in C60 are equal
(c) Fullerences are covalents
(d) React with group I metals forming solid like K3C60.
Ans. (b) All bonds in C60 are equal
Q.14. Orbitals with l = 3 value are known by the following label: (2015)
(a) p (b) s (c) d (d) f
Ans. (d) f
Q.15. What is wrong about the equation ? (2015)
(a) It is Born equation (b) H is Hamiltonian operator
(b) E is energy of the electron (d) is the wave function.
Ans. (a) It is Born equation
Q.16. Atomic numbers are more fundamental than atomic masses was established by:
(a) Millikan (b) Thomson (c) Rutherford (d) Moseley (2015)
Ans. (d) Moseley
Q.17. Which statement is wrong about F-centres? (2015)
(a) Solid containing F-centers are diamagnetic
(b) F-centres are associated with the colour of the compound.
(c) More F-centres present, the greater is the intensity of the colouration.
(d) F is an abbreviation for German word Farbe.
Ans. (a) Solid containing F-centers are diamagnetic
Q.18. Semiconductors do not show the following property (2015)
(a) have conductivities in the order 107 (Wm)-1.
(b) Have conductivities generally from 10-6 to 104 (Wm)-1.
(c) Gap between valence band and conduction band is small
(d) Electrical conductivity increases with increasing temperature.
Ans. (a) have conductivities in the order 107 (Wm)-1.
Q.19. Stability of +1 oxidation state increases in the sequence: (2015)
(a) Al < Ga < In < Tl (b) Ga < Tl < In < Al
(c) Tl < Ga < In < Al (d) In < Ga < Al < Tl
Ans. (a) Al < Ga < In < Tl
Q.20. Hydrides of group 13 elements do not show the following property:
(a) Form hydrides of MH3 type
(b) Hydrides are weak Lewis acids
(c) Their thermal stability decreases on moving down the group
(d) AlH3 does not polymerize (2015)
Ans. (d) AlH3 does not polymerize
Q.21. Which has bond order 1? (2015)
(a) N2 (b) CO (c) NaO+ (d) O22-
Ans. (d) O22-
Q.22. Quantum mechanics was developed by: (2015)
(a) Thomson (b) Moseley (c) Newton (d) Schrodinger
Ans. (d) Schrodinger
Q.23. What is false about tetrahydridoborates? (2015) (a) [BH4]- is tetrahedral (b) Na[BH4] has a sodium chloride structure
(c) Alkali metal tetrahydrinorates are white ionic solids
(d) All tetrahydriborates are ionic
Ans. (c) Alkali metal tetrahydrinorates are white ionic solids
Q.24. Total number of orbitals associated with principal quantum number n = 3 is: (2015)
(a) 4 (b) 5 (c) 7 (d) 9
Ans. (d) 9
Q.25 Which exist in a diamond like form? (2015)
(a) BF3 (b) BN (c) B2O3 (d) LiBO2
Ans. (b) BN
Q.26. Inorganic benzene is: (2015)
(a) B2H6.2NH3 (b) (BN)x (c) B3N3H6 (d) [Me3N.BH3]
Ans. (c) B3N3H6
Q.27. Which is wrong statement? (2015) (a) Te = C = Te is known (b) S2 is paramagnetic
(c) SF4 is isoelectronic with ClF3 (d) Polonium shows metallic character
Ans. (c) SF4 is isoelectronic with ClF3
Q.28. Linear shape is shown by (2015)
(a) NO3- (b) CO2 (c) O3 (d) NO2-
Ans. (b) CO2
Q.29. Square-planar geometry is shown by: (2015)
(a) XeF4 (b) XeF2 (c) XeF6 (d) XeO3
Ans. (a) XeF4
Q.30. In solution, Xe4F24 tetramers are formed by:
(a) XeF2 (b) XeF4 (c) XeOF4 (d) Solid XeF6
Ans. (d) Solid XeF6
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(a) Density of diamond is much greater than that of graphite.
(b) Graphite can be converted to diamond at very high pressure.
(c) Graphite is a good lubricant.
(d) Graphite is a bad electrical conductor.
Ans. (d) Graphite is a bad electrical conductor.
Q.2. Fullerenes were first reported by (2015)
(a) Kroto and Colleagues (b) Thomson
(c) Martel (d) Bowser
Ans. (a) Kroto and Colleagues
Q.3. Helium does not show the following property: (2015)
(a) Solid helium cannot be formed
(b) Hellium-II is classed as a superfluid
(c) Helium is used as a light source in laser
(d) He2 is unstable
Ans. (b) Hellium-II is classed as a superfluid
Q.4. The following statement is not true for Frenkel defect: (2015)
(a) Frenkel defect are commonly found in ionic solids.
(b) Frenkel defects change the density of the solids.
(c) In AgBr both Schottky and Frenkel defects occur.
(d) Frenkel dcefects are found in silver halides.
Ans. (b) Frenkel defects change the density of the solids.
Q.5. What is False? (2015)
(a) H4P2O6 is tetrabasic (b) H3PO4 is tribasic
(c) H3PO3 is dibasic (d) H3PO2 is dibasic
Ans. (d) H3PO2 is dibasic
Q.6. Diborane does not show the following property: (2015)
(a) It is coloured gas (b) It is instantly hydrolysed by water
(c) It is an electron deficient compound (d) It explodes with oxygen
Ans. (a) It is coloured gas
Q.7. Trigonal bipyramid shape is shown by: (2015)
(a) I3- (b) SF6 (c) NF3 (d) NH3
Ans. (a) I3-
Q.9. Sodium Chloride structure type is shown by:
(a) MgO (b) CuCl (c) HgS (d) BaS (2015)
Ans. (a) MgO
Q.10. Group 13 element is
(a) S (b) As (c) Si (d) Tl (2015)
Ans. (d) Tl
Q.11. Which of the following has no lone pair of electrons? (2015)
(a) XeF6 (b) XeF4 (c) XeF2 (d) XeO4
Ans. (d) XeO4
Q.12. Example of orthorhombic crystal system is: (2015)
(a) K2Cr2O7 (b) ZnO (c) CaCO3 (d) TiO2
Ans. (a) K2Cr2O7
Q.13. Fullerenes do not show the following property: (2015) (a) All atoms in C60 are equivalence
(b) All bonds in C60 are equal
(c) Fullerences are covalents
(d) React with group I metals forming solid like K3C60.
Ans. (b) All bonds in C60 are equal
Q.14. Orbitals with l = 3 value are known by the following label: (2015)
(a) p (b) s (c) d (d) f
Ans. (d) f
Q.15. What is wrong about the equation ? (2015)
(a) It is Born equation (b) H is Hamiltonian operator
(b) E is energy of the electron (d) is the wave function.
Ans. (a) It is Born equation
Q.16. Atomic numbers are more fundamental than atomic masses was established by:
(a) Millikan (b) Thomson (c) Rutherford (d) Moseley (2015)
Ans. (d) Moseley
Q.17. Which statement is wrong about F-centres? (2015)
(a) Solid containing F-centers are diamagnetic
(b) F-centres are associated with the colour of the compound.
(c) More F-centres present, the greater is the intensity of the colouration.
(d) F is an abbreviation for German word Farbe.
Ans. (a) Solid containing F-centers are diamagnetic
Q.18. Semiconductors do not show the following property (2015)
(a) have conductivities in the order 107 (Wm)-1.
(b) Have conductivities generally from 10-6 to 104 (Wm)-1.
(c) Gap between valence band and conduction band is small
(d) Electrical conductivity increases with increasing temperature.
Ans. (a) have conductivities in the order 107 (Wm)-1.
Q.19. Stability of +1 oxidation state increases in the sequence: (2015)
(a) Al < Ga < In < Tl (b) Ga < Tl < In < Al
(c) Tl < Ga < In < Al (d) In < Ga < Al < Tl
Ans. (a) Al < Ga < In < Tl
Q.20. Hydrides of group 13 elements do not show the following property:
(a) Form hydrides of MH3 type
(b) Hydrides are weak Lewis acids
(c) Their thermal stability decreases on moving down the group
(d) AlH3 does not polymerize (2015)
Ans. (d) AlH3 does not polymerize
Q.21. Which has bond order 1? (2015)
(a) N2 (b) CO (c) NaO+ (d) O22-
Ans. (d) O22-
Q.22. Quantum mechanics was developed by: (2015)
(a) Thomson (b) Moseley (c) Newton (d) Schrodinger
Ans. (d) Schrodinger
Q.23. What is false about tetrahydridoborates? (2015) (a) [BH4]- is tetrahedral (b) Na[BH4] has a sodium chloride structure
(c) Alkali metal tetrahydrinorates are white ionic solids
(d) All tetrahydriborates are ionic
Ans. (c) Alkali metal tetrahydrinorates are white ionic solids
Q.24. Total number of orbitals associated with principal quantum number n = 3 is: (2015)
(a) 4 (b) 5 (c) 7 (d) 9
Ans. (d) 9
Q.25 Which exist in a diamond like form? (2015)
(a) BF3 (b) BN (c) B2O3 (d) LiBO2
Ans. (b) BN
Q.26. Inorganic benzene is: (2015)
(a) B2H6.2NH3 (b) (BN)x (c) B3N3H6 (d) [Me3N.BH3]
Ans. (c) B3N3H6
Q.27. Which is wrong statement? (2015) (a) Te = C = Te is known (b) S2 is paramagnetic
(c) SF4 is isoelectronic with ClF3 (d) Polonium shows metallic character
Ans. (c) SF4 is isoelectronic with ClF3
Q.28. Linear shape is shown by (2015)
(a) NO3- (b) CO2 (c) O3 (d) NO2-
Ans. (b) CO2
Q.29. Square-planar geometry is shown by: (2015)
(a) XeF4 (b) XeF2 (c) XeF6 (d) XeO3
Ans. (a) XeF4
Q.30. In solution, Xe4F24 tetramers are formed by:
(a) XeF2 (b) XeF4 (c) XeOF4 (d) Solid XeF6
Ans. (d) Solid XeF6
Next Page - 1 - 2 - 3 - 4
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