CBSE
Multiple Choice QuestionsThe number of disulphide linkages present in insulin are :
1
2
3
4
Which halogen forms only one oxoacid (HOX)?
F
Cl
Br
I
The composition of carnallite is
KCl.MgCl2.6H2O
NaAlO2
Fe3O4
Na3AlF6
Tincture of iodine is
aqueous solution of I2
solution of I2 in aqueous KI
alcohol-water solution of I2
aqueous solution of KI
XeF6 on complete hydrolysis produces
XeOF4
XeO2F4
XeO3
XeO2
Phosgene is the common name of the following compound :
Mixture of CO2 and Cl2
POCl3
Carbonyl chloride
Carbon tetrachloride
Assertion: Sb2S3 is not soluble in yellow ammonium sulphide.
Reason : The common ion effect due to S2- ions reduces the solubility of Sb2S3
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false.
How many P = 0 bond present in (HPO3)3?
0
3
6
9
Assertion: H3PO3is dibasic acid.
Reason: Two hydrogen atoms are directly attached to the P.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Which is correct regarding acidity?
H2S <H2Se
H2S> H2Se
H2Se > H2Te
None of these.
