In the following, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select ‘No error’. While some oncologists abroad say much research is needed to be able (1)/ to properly back up such a claim, Cuban pharmaceutical firm Labiofam has been (2)/ using scorpion venom since 2011 to manufacture the homeopathic medicine Vidatox. (3)/ No error (4)?

Option 4 : 1

The error lies due to wrong determiner being used here.

‘much’ must be replaced with ‘more’.

‘much’ is used with ‘uncountable nouns’. ‘more’ is used to show ‘comparison’. ‘more’ denotes ‘a greater or additional amount or degree’. Since additional amount of ‘research’ is required, hence ‘more’ is the correct word here.

Correct sentence- ‘While some oncologists abroad say more research is needed to be able to properly back up such a claim, Cuban pharmaceutical firm Labiofam has been using scorpion venom since 2011 to manufacture the homeopathic medicine Vidatox.’