[2.8] A mixture of 2.3 g formic acid and 4.5 g oxalic acid is treated with conc. H_2SO

For Competitive Exams

A mixture of 2.3 g formic acid and 4.5 g oxalic acid is treated with conc. $H_2SO_4$. The evolved gaseous mixture is passed through KOH pellets. Weight (in g) of the remaining product at STP will be

2.8

3.0

1.4

4.4

Explanation:

Gaseous mixture formed is CO and $CO_2$ when it is passed through KOH, only $CO_2$ is absorbed. So the remaining gas is CO. So, weight of remaining gaseous product CO is
$\dfrac{2}{20}\times 28=2.8g$
So, the correct option is (1)

Additional Questions

Which of the following oxides is most acidic in nature?	Answer
Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity?	Answer
The compound A on treatment with Na gives B, and with $PCl_5$ gives C. B and C react together to give diethyl ether. A, B and C are in the order	Answer
The compound $C_7H_8$ undergoes the following reactions: The product C is	Answer
Hydrocarbon (A) reacts with bromine by substitution to form an alkyl bromide which by Wurtz reaction is converted to gaseous hydrocarbon containing less than four carbon atoms. (A) is	Answer
Which of the following molecules represents the order of hybridisation $sp^2, sp^2$, sp, sp from left to right atoms?	Answer
Which of the following carbocations is expected to be most stable?	Answer
Which of the following is correct with respect to – I effect of the substituents? (R = alkyl)	Answer
In the reaction The electrophile involved is	Answer
Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their	Answer

Share with Friends