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Chemistry Mcqs

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

Chemistry Basic Concept, Chemistry Mcqs /
When aquious bromine is added to aqueous phenol a creamy white ppt is obtained. What does this reaction show ?

A. phenol is unsaturated
B. 2-bromophenol is insoluble in water
C. a hydroxy group makes the benzene ring more susceptible to electrophilic attack
D. acid-base reaction

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

Chemistry Basic Concept, Chemistry Mcqs

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 ?

Chemistry Basic Concept, Chemistry Mcqs /
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 ?

A. alkaline aquenous iodine
B. aqueous bromine
C. Fehling solution
D. aqueous NaOH

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 ? Read More »

Chemistry Basic Concept, Chemistry Mcqs

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

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

A. n2a/v correct for the intermolecular forces.
B. nb correct for the volume occupied by gas molecules.
C. at high densities the equation reduces to the ideal gas law
D. all of the above statements are correct.

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

Chemistry Basic Concept, Chemistry Mcqs