ONLINE TEST - ADDITIONAL Qs 2014 - EM

This Quiz is a Simple test for + 2 Science group students which contain Questions asked in March, June & September - 2014. Just participate in it and test your skill.

1. The most common oxidation state of actinide is
+ 2
+ 1
+ 3
+ 4


2. Which of the following lanthanide have no partly filled 4f-subshell but have electrons in 5d-subshell?
Scandium
Titanium
Zinc
Lanthanum


3. Chlorophyll is a_________ complex
Magnesium – Porphyrin
Iron - Porphyrin
Copper – Porphyrin
Nickel - Porphyrin


4. In the nuclear reaction, 90Th232 → 82Pb208  the number of α and β particles emitted are,
1α, 4β
2α, 2β
6α, 4β
8α, 4β


5. The smallest repeating unit in space lattice which when repeated over and again results in the crystal of the given substance is called
Space lattice
Crystal lattice
Unit cell
Isomorphism


6. Presence of moisture
activates the catalyst
deactivates the catalyst
increases the product
makes the catalyst porous


7. Ethyl alcohol cannot be used as a solvent for CH3MgI because
CH3MgI reacts with alcohol giving methane
The reaction between them is explosive in nature
CH3MgI is converted to C2H5MgI
Alcohol is immiscible with CH3MgI


8. Tollen’s reagent is
Ammoniacal cuprous chloride
Ammoniacal cuprous oxide
Ammoniacal silver nitrate
Ammoniacal silver chloride


9. The order ofreactivity of carboxylic acid derivatives is
Acid chloride > Ester > Amide > Acid anhydride
Acid chloride > Acid anhydride > Ester > Amide
Acid chloride > Amide > Acid anhydride > Ester
Acid anhydride > Ester > Amide > Acid chloride


10. Methyl isocyanide on reduction using LiAlH4 gives
Methyl amine
Ethyl amine
Di methyl amine
Trimethyl amine


11. _________ acts as a protective agent on the surfaces of animals and plants.
Carbohydrates
Vitamins
Nucleic acids
Waxes


12. In a molecule when Nb = 8 and Na = 2 then the bond order is
3
4
2.5
2


13. The oxidation state of Uranium in UO2Cl2 is
+ 2
+ 4
+ 5
+ 6


14. The type of isomerism found in the complexes [Co(NO2)(NH3)5]SO4 and [Co(SO4)(NH3)5] NO2
Hydrate isomerism
Co-ordination isomerism
Linkage isomerism
Ionisation isomerism


15. In the nuclear reaction 92U238 → 82Pb206 the number of α and β particles emitted are
7α, 5β
6α, 4β
4α, 3β
8α, 6β


16. Which is the correct statement of IInd law of thermodynamics?
A process accompanied by deccrease in entropy tends to be spontaneous
Efficiency of a machine can be cent percent
It is impossible to transfer heat from a cold body to a hot body by a machine without doing any   work
It is possible to convert the input energy completely to work by a machine


17. The maximum yield of SO3 in contact process is
97%
37%
50%
47%


18. Arrhenius equation is given as
k = Ae– 1/RT
k = Ae– RT / Ea
k = Ae– Ea/RT
k = AeEa/RT


19. The catalyst used for the decomposition of KClO3 is
MnO2
Cl2
V2O5
Pt


20. The value of enthalpy of neutralisation of strong acid by strong base is
– 87.32 kJ equiv– 1
– 57.32 kJ equiv– 1
– 72.57 kJ equiv– 1
– 77.23 kJ equiv– 1


21. A compound that gives a positive iodoform test is
1 - pentanol
2 - pentanone
3 - pentanone
pentanal


22. Bromination of anisole give
o - bromoanisole
m - bromoanisole
p - bromoanisole
both a) and c)


23. Formaldehyde polymerises to give
Paraldehyde
Paraformaldehyde
Formalin
Formic acid


24. The reagent that cannot be used for the conversion of C6H5–NO2 → C6H5 –NH2
Sn / HCl
LiAIH4
H2 / Ni
Zn / NaOH


25. Shape of p-orbital is
spherical
clover leaf
dumb-bell
doughnut


26. A substance which increases the activity of a catalyst
positive catalyst
negative catalyst
promoter
catalytic poison


27. In the following radioactive decay, 92X232 → 89Y220, how many α and β particles are ejected.
3α, 3β
5α, 3β
3α, 5β
5α, 5β


28. Ethylene glycol forms terylene with
Adipic acid
Phthalic anhydride
Terephthalic acid
Oxalic acid


29. The percentage efficiency of a heat engine working between the temperature T1 K and T2 K (T1 > T2) is given by
(T2 – T1 / T2) x 100
(T1 – T2 / T1) x 100
(T1 / T2) x 100
(T2 / T1) x 100


30. A metal ion from the first transition series forms an octahedral complex with magnetic moment of 4.9 BM and another octahedral complex which is diamagnetic. The metal ion is
Fe2+
Co2+
Mn2+
Ni2+


31. Excess of sodium hydroxide reacts with zinc to form
Zn - H2
Na2ZnO2
ZnO
Zn(OH)2


32. Purity of blister copper is
100%
98%
90%
12%


33. If Δng is positive
Kp = Kc
Kc < Kp
Kc > Kp
Kc = 0


34. Which of the following particle having same kinetic energy, would have the maximum de-Broglie wave length?
α - particle
proton
β - particle
neutron


35. Important ore of lanthanides is
Pitch blende
Monozite
Gypsum
Chormite


36. For the titration between HCl and sodium carbonate the indicator used is
potassium permanganate
phenolphthalein
litmus
methyl orange


37. One can draw the map of building on a glass plate by
HI
HF
HBr
HCl


38. Colloidal milk of magnesia is used
as germ killer
as fertilizer
for stomach disorders
as tonic


39. The reaction between a primary amine, chloroform and alcoholic KOH is known as
Gabriel reaction
Mustard oil reaction
Carbyl amine reaction
Hoffmann reaction


40. Which of the following lanthanide have no partly filled 4f-subshell but have electrons in 5d-subshell?
Ce
Lu
Pm
Nd

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