Which of the following is the most suitable requirement for the dehydration of ethanol to form an ether?

Sulphuric acid at 413K Sulphuric acid at 443K Sodium hydroxide at 413K Sodium hydroxide at 443K

Sulphuric acid at 413K

Alcohols undergo dehydration in the presence of protic acids to form either alkenes or ethers depending upon the reaction temperature conditions. At 413K, ethanol forms an ether with H2SO4.