Which of following is the correct order of increasing reactivity?
RCOOR' < RCOCl < RCONH2
RCOOR' < RCONH2 < RCOCl
RCOCl < RCONH2 < RCOOR'
RCONH2 < RCOOR' < RCOCl
A sample of CHCl3 before using as an anaesthetic is tested by
AgNO3 solution after boiling with KOH
Ammonical cuprous chloride
Fehling solution
AgNO3
What is the name of reaction when benzaldehyde changes in to benzyl alcohol?
Cannizzaro's reaction
Wurtz reaction
Kolbe reaction
Friedel-Craft's reaction
Assertion: Phenol is a weaker acid than ethanol.
Reason: Groups with +M effect and -I effect decrease acidity at m-position.
If both assertion and reason are true and reason is a correct explanation of the assertion.
If both the assertion and reason are true but the reason is not a correct explanation of the assertion.
If the assertion is true but the reason is false.
If both the assertion and reason are false.
Aniline on treatment with HCl and NaNO2 gives
diazo salt
nitroaniline
chloroaniline
aminophenol
A.
diazo salt
When aniline is treated with HCl and NaNO2, it forms benzene diazonium chloride. Therefore, it gives diazo salt.
Assertion: Ethers behave as bases in the presence of mineral acids.
Reason: It is due to the presence of a lone pair of electrons on the oxygen.
If both assertion and reason are true and the reason is a correct explanation of the assertion.
If both the assertion and reason are true but the reason is not a correct explanation of the assertion.
If the assertion is true but the reason is false.
If both the assertion and reason are false.
What will be the product ,when carboxy phenol ,obtained by Reimer Tiemann's process ,is deoxidised with Zn powder ?