Description : What is meant by litmus test for mild acid ?
Last Answer : : Dipping blue litmus paper wet with mild acid turns it red. This is the litmus test for mild acid. Due to the high concentration of H + ions in dilute hydrochloric acid ( HCl) , dipping blue litmus paper in dilute HCl turns it red.
Description : Which one of the following is commonly used for pulp bleaching in the paper industry? (1) Mild sulphuric acid (2) Glucose isomerase (3) Hydrogen peroxide (4) Iodine and water
Last Answer : (3) Hydrogen peroxide Explanation: Bleaching of wood pulp is the chemical processing carried out to decrease the color of the pulp, so that it becomes whiter. Alkaline hydrogen ... responsible for absorbing visible light. The decomposition of hydrogen peroxide is catalyzed by transition metals.
Last Answer : Hydrogen peroxide
Last Answer : A solution of less acid in more water is called mild acid
Description : The acid used as a mild antiseptic eye lo- tion?
Last Answer : Boric Acid
Description : Which of the following materials may prove unsuitable for handling acetic acid (glacial & anhydrous) at 40°C? (A) Silicone rubber, teflon, porcelain and wood (B) Nickel, monel, stainless steel and graphite (C) Aluminium, copper, high silicon iron (D) Brass, cast iron, mild steel and tin
Last Answer : (D) Brass, cast iron, mild steel and tin
Description : The preferred material of construction for storage tanks for 98% sulphuric acid is (A) Aluminium (B) Lead (C) Stainless steel 316 (D) Mild steel
Last Answer : (B) Lead
Description : Acetaldehyde is produced by hydration of acetylene in a sulphuric acid solution of mercuric sulphate. Hydration tower is made of (A) Rubber lined mild steel (B) Lead lined mild steel (C) Aluminium (D) Cast iron
Last Answer : (A) Rubber lined mild steel
Description : Dilute sulphuric acid is transported in __________ pipes. (A) Mild steel (B) Lead (C) Copper (D) Special alloys
Description : Hydrochloric acid absorber in made of (A) Cast iron (B) Mild steel (C) Karbate (D) Stainless steel
Last Answer : (C) Karbate
Description : Which of the following is not shipped in mild steel containers? (A) Acetone (B) Ammonia (C) Ethyl alcohol (D) Formic acid
Last Answer : (D) Formic acid
Description : Mild steel storage vessels are suitable for the storage of (A) Anhydrous ammonia (B) Fatty acids (C) Hydrochloric acid (95%) (D) Sulphuric acid (25%)
Last Answer : (A) Anhydrous ammonia
Description : Why there is no suitable indicator of mild acids and mild alkalis ?
Last Answer : When the mild alkali solution is added to the mild acid solution drop by drop, the pH value of the solution gradually increases. In this case, even if it comes close to the quenching point, no sudden ... is used. So it can be said that there is no suitable indicator of mild acids and mild alkalis.
Description : This colorless liquid has a mild characteristic odor. Its chemical formula is C2H5OH. Name this liquid.
Last Answer : ANSWER: ETHYL ALCOHOL or ETHANOL
Last Answer : Acid wet litmus paper turns red