HCl is a gas but HF is a low boiling liquid .This is because :
H-F bond is strong
H-F bond is weak
molecules aggregate because of hydrogen bonding
HF is a weak acid
Ostwald process is used for the manufacture of :
nitric acid
sulphuric acid
ammonia
bleaching powder
Which of the following inert gas liquifies easily ?
He
Kr
Ne
Ar
A.
He
The inert gases are not easily liquified .The ease of liquification increases down the group from He to Rn due to increase in atomic size and therefore , increase in van der Waal's forces .
Which is correct order of solubility in water?
Ba(OH)2 <Mg(OH)2
BaCO3> CaCO3
CaSO4 <MgSO4
Ca(OH)2Mg(OH)2
Assertion : H3PO2 has strong reducing property but H3PO4 does not.
Reason : P-OH bond present in H3PO4.
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.
Assertion : H2Se is less acidic than H2S.
Reason : S is less electronegative than Se.
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.