Chemistry MCQs

Page No. 112

What is maximum number of electrons in an orbital with m (magnetic quantum number) = 3 ?


a6


b4


c3


d2


View Answer 2

Fruit juices and fizzy drinks such as lemonade are often sold in aluminium cans. What is the most important reason aluminium is a suitable metal ?


aaluminium can be recycled


baluminium has very low density


caluminium is the most abundant metal in the earth crust


daluminium is resistant to corrosion by organic acids.



In solids the temperature is the measure of__________________?


aAverage kinetic energy of molecules


bVibrational kinetic energy


cTranslational kinetic energy


dNone of the above



All the transition elements show_________________?


aSimilar physical properties


bSimilar chemical properties


cBoth A and b


dNone


View Answer None

Which of the following element doesnot show allotropy_________________?


aCarbon


bArsenic


cNitrogen


dSulphur


View Answer Nitrogen

Benzene is a good solvent for__________________?


afats


bresins


ciodine


dall the above


View Answer all the above

If a graph is plotted between temperature on x-axis and volume on y-axis for 1 mole of gas then we get straight line which cuts the temperature exis at________________?


a0?C


b273.16K


c?273.16 K


d?273.16?C


View Answer ?273.16?C

When aquious bromine is added to aqueous phenol a creamy white ppt is obtained. What does this reaction show ?


aphenol is unsaturated


b2-bromophenol is insoluble in water


ca hydroxy group makes the benzene ring more susceptible to electrophilic attack


dacid-base reaction



The inhaled breath of diabetics patient contain acetone. A medical student wishes to test for diabetes by asking patient to bubble their breath through a reagent ?


aalkaline aquenous iodine


baqueous bromine


cFehling solution


daqueous NaOH



In the van der Waals equation (P + n2a / v2) (v – nb) = nRT which of the following statement is not true ?


an2a/v correct for the intermolecular forces.


bnb correct for the volume occupied by gas molecules.


cat high densities the equation reduces to the ideal gas law


dall of the above statements are correct.



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