Acetic acid is prepared from methyl magnesium bromide and dry ice in presence of dry ether. Name the compound that serves not only as reagent but also as cooling agent in the reaction.

Write preparation of acetic acid from dry ice

Write the preparation of benzoic acid from the following: Dry ice

Prepare: Ethanoic acid from dry ice

Fill in the blanks by selecting the correct word from the bracket and complete the given paragraph. (characterisitic taste, Lactobacilli, Xanthamonas spp., lactic acid, dense consistency, acetic acid, 2:1,Streptococcus thermophilus, 1:1) For preparation of yoghurt, milk is boiled and once it cools to warm temperature, bacteria such as Lactobacillus delbrueckii and "____" are added to it in "_____" proporation. "_____" is formed due to Streptococcus that makes the proteins to gel out and thus give "______" to the yoghurt. Acetaldehyde like compounds are formed due to "_____" that gives "______" to the yoghurt.

The compound which is NOT formed when a mixture of n-butyl bromide and ethyl bromide treated with sodium metal in the presence of dry ether is ________.