reagents

Question 1

acetic acid

Answer 1

• ethanoic acid, vinegar
• colorless liquid with pungent odor and sour taste
• used in the production of chemical compounds and as food preservative

Question 2

acetic anhydrate

Answer 2

• ethanoic anydride, acetyl acetate
• colorless liquid with strong acetic odor
• used in the production of cellulose acetate, pharmaceuticals, and in acetylation reactions

Question 3

acetone

Answer 3

• propanone, dimethyl ketone
• colorless, volatile, and flammable liquid with a sweet odor
• used as solvent in nail polish removers, production of plastics and in chemical synthesis

Question 4

acetophenone

Answer 4

• phenyl methyl ketone
• colorless with sweet, floral odor
• used in the production of fragrances, pharmaceuticals, and as a solvent

Question 5

activated charcoal

Answer 5

• activated carbon
• form of carbin with low-volume pores
• uses: water purification, gas purification and antidote for poisonings

Question 6

anhydrous magnesium sulfate

Answer 6

• magnesium sulfate
• white crystalline highly soluble in water
• used as a drying agent, anticonvulsant in medicine, fertilizer in agriculture

Question 7

aniline

Answer 7

• phenylamine, aminobenzene
• colorless to slightly yellow with characteristic odor
• manufacture of dyes, plastics and pharmaceuticals

Question 8

bromine water

Answer 8

• bromine solution
• a solution of bromine in water, reddish-brown in color
• reagent in chemical reactions (bromination of organic compounds)

Question 9

ethanol

Answer 9

• ethyl alcohol
• colorless with alcoholic odor
• solvent in alcoholic beverages and as fuel

Question 10

ether

Answer 10

• ethoxyethane, diethyl ether
• colorless, volatile liquid with strong odor
• used as solvent and formerly used as general anesthetic

Question 11

ferric chloride

Answer 11

• iron (iii) chloride
• dark brown crystalline solid that is highly soluble in water
• used in water and wastewater treatment, etchant for metals, and in laboratory tests for phenols

Question 12

glucose

Answer 12

• d glucose, dextrose
• simple sugar that is an important energy source in living organisms
• used in food industry, treatment for hypoglycemia, and sweetener

Question 13

glycerin

Answer 13

• glycerol, propanetriol
• colorless, odorless, viscous liquid that is sweet and non toxic
• used in food products, pharmaceuticals, cosmetics as humectant, solvent and sweetener

Question 14

hexane

Answer 14

• n hexane
• colorless liquid with slight odor
• solvent, formulation of glues for shoes, leather products and roofing

Question 15

hydrochloric acid

Answer 15

• muriatic acid, hydrogen chloride
• colorless to light yellow watery liquid with a pungent odor
• used in the production of chlorides, fertilizers, and dyes, in electroplating, and in rubber industries

Question 16

lime water

Answer 16

• calcium hydroxide solution
• clear, colorless with slight earthy smell
• water treatment, food prep, neutralizing agent

Question 17

methanol

Answer 17

• methyl alcohol, wood alcohol
• colorless, volatile liquid with a faintly sweet pungent odor
• industrial solvent, fuel, feedstock

Question 18

methyl orange solution

Answer 18

• acid orange
• orange-red crystalline powder soluble in water
• used in titrations as indicator

Question 19

methyl salicylate

Answer 19

• wintergreen oil, betula oil
• colorless to yellow or reddish color with wintergreen odor
• used as flavoring agent, liniment, and in perfumery

Question 20

nutrient solution

Answer 20

• culture solution
• solution containing essential nutrients for plant growth
• used un hydroponics, plant tissue culture

Question 21

propanol

Answer 21

• propyl alcohol
• colorless liquid with mild alcoholic odor
• used as solvent, manufacture of cosmetics and pharmaceuticals, and as disinfectant

Question 22

salicylic acid

Answer 22

• 2 hydroxybenzoic acid
• white crystalline solid with sweet taste
• used in manufacture of pharmaceuticals, as preservative, and treatment of acne

Question 23

sodium acetate trihydrate

Answer 23

• sodium ethanoate trihydrate
• colorless, odorless crystalline solid
• food preservation, as buffering agent, and in heating pads

Question 24

sodium carbonate solution

Answer 24

• soda ash solution
• clear, colorless solution
• water softening, glass manufacturing, and as cleaning agent

Question 25

sodium hydroxide solution

Answer 25

• caustic soda solution, lye solution
• clear, colorless solution with slippery feel
• chemical manufacturing, water treatment, and as cleaning agent

Question 26

sodium hypochlorite

Answer 26

• bleach, chlorine bleach
• clear, pale greenish-yellow solution with chlorine-like odor
• disinfectant, bleaching agent, and in water treatment

Question 27

sodium nitrate

Answer 27

• chile saltpeter, soda niter
• white crystalline solid highly soluble in water
• in fertilizers, food preservation, and manufacturing of explosives

Question 28

starch potassium iodide paper

Answer 28

• iodine-starch test paper
• paper impregnated with starch and potassium iodide
• used as an indicator in redox titrations and for detecting oxidizing agents

Question 29

sulfuric acid

Answer 29

• oil of vitriol, hydrogen sulfate
• colorless to slightly yellow viscous liquid that is highly corrosive
• manufacture of chemicals, in petroleum refining, and in lead-acid batteries

Question 30

yeast

Answer 30

-baker’s yeast
- microscopic fungus consisting of single oval cells
- used in baking, brewing, and in biotechnology

Question 31

zinc chloride solution

Answer 31

• zinc dichloride solution
• clear colorless solution
• used in textile processing, metallurgical fluxes, and as dehydrating agent