2690060
Description
Quiz by lisawinkler10, updated more than 1 year ago
|
|
Created by lisawinkler10
about 9 years ago
|
|
Question 1
Question
Which two are examples of oxidising agents?
Answer
-
Acidified Potassium Manganate(VII)
-
Aqueous Potassium Iodide
-
Anhydrous Calcium Chloride
-
Concentrated Sulphuric Acid
-
Acidified Potassium Dichromate(VI)
Question 2
Question
What is the colour change for the oxidising agent Acidified Potassium Manganate(VII)?
Answer
-
(purple to colourless)
-
(orange to green)
-
(green to orange)
-
(white to blue)
Question 3
Question
Copper(II) chloride and copper(II) carbonate are blue
Answer
- True
- False
Question 4
Question
What temperature is optimum for enzymes in yeast in fermentation? (degrees Celsius)
Answer
-
37
-
60
-
62
-
20
-
35
Question 5
Question
What is a bung used for in fermentation?
Answer
-
let Carbon Dioxide out and prevent entry of Oxygen
-
let Oxygen out and prevent entry of Carbon Dioxide
Question 6
Question
Tick all reasons why the fermentation reaction might stop.
Answer
-
An excess in conc. of alcohol
-
The yeast dies
-
Glucose finishes up
-
Nepal earthquake
Question 7
Question
What might you use to cool the gases in fractional distillation by absorbing heat from them
Answer
-
Condenser
-
Glass beads
-
Liquifying column
-
Copper wire
Question 8
Question
Which indicator is yellow at a low pH and blue at a high pH?
Answer
-
Universal Indicator
-
Methyl Orange
-
Phenolphtalein
-
Bromothymol
Question 9
Question
What is the colour change when testing for water with Anhydrous Cobalt(II) Chloride
Answer
-
white to blue
-
blue to pink
-
pink to green
-
blue to colourless
Question 10
Question
Complete the equation: Acid + Carbonate →
Answer
-
Salt + Water + Carbon Dioxide
-
Salt + Carbon Dioxide
-
Salt + Water + Carbon
-
Water + Carbon Dioxide
Question 11
Question
Complete the equation: Acid + Alcohol →
Answer
-
Ester + Water
-
Ester + Hyrdogen
-
Alkene + Hydrogen
-
Alkene + Water
Want to create your own Quizzes for free with GoConqr? Learn more.