wrong answers

Question 1

what colour does methyl orange turn when nutralised

Answer 1

orange

Question 2

what colour does methyl orange turn when =, alkaline, neutral, and when acidic

Answer 2

yellow
orange
red

Question 3

what is the equation for ammonium sulphate

Answer 3

(NH4)2SO4

Question 4

why is graphene a good conductor

Answer 4

.carbon has 4 outer shell electrons

• 3 electrons used in bond each carbon forms 3 bonds
• one electron per carbon is free to move

Question 5

what is the chemical equation for Sodium Hydroxide

Answer 5

2NAOH

Question 6

what is the process in which an alcohol can be converted into an carboxylic acid

Answer 6

oxidation

Question 7

what are the two steps to be taken to turn carbohydrate into ethanol solution

Answer 7

add yeast
warm

Question 8

how to improve an experiment to give a temperature rise closer to the theoretical value

Answer 8

use a lid or a draught shield
so less energy escapes

Question 9

why is the fermentation carried out at 30c and not 80c

Answer 9

yeast provides enzymes
at 80c the enzymes will denature

Question 10

what is the equation for the production of ethanol through fermentation

Answer 10

glucose=ethanol + carbon dioxide

Question 11

why is molten zinc chloride a good electrolyte

Answer 11

contains ions that can move