For the following questions answer them individually
Which of the following is a correct statement?
In isolation of which one of the following metals from their ores, the use of cyanide salt is commonly not involved?
The oxoacid of phosphorus that is easily obtained from a reaction of alkali and white phosphorus and has two P - H bonds, is
In the given conversion the compound A is:
Given below are two statements.
Statement I: Phenols are weakly acidic.
Statement II: Therefore they are freely soluble in NaOH solution and are weaker acids than alcohols and water.
Choose the most appropriate option
Given below are two statements:
Statement I: The esterification of carboxylic acid with an alcohol is a nucleophilic acyl substitution.
Statement II: Electron withdrawing groups in the carboxylic acid will increase the rate of esterification reaction.
Choose the most appropriate option
Consider the above reaction. The product A and product B respectively are
Consider the above reaction, the product and product respectively are
The polymer, which can be stretched and retains its original status on releasing the force is
Which of the following compound does not contain sulphur atom?
Sugar moiety in DNA and RNA molecules respectively are