Electrolysis

Electrolysis

6th - 10th Grade

10 Qs

quiz-placeholder

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Electrolysis

Electrolysis

Assessment

Quiz

Chemistry

6th - 10th Grade

Hard

Created by

E Evans

Used 41+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

At ba electrod bydd yr ionau positif yn symud?

Catod

Anod

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Ym mha ffurf/iau bydd electrolysis yn gweithio gyda chyfansoddyn ionig

Powdwr

Solid

Hydoddiant

Hylif

3.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Beth yw enw cemegol alwmina?

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Pam bod ionau'n symud at yr electrodau?

Mae'n nhw'n tryledu

Mae'r gwefrau'n cael eu hatynnu

Mae gronynnau hylif yn symud

Mae disgyrchiant yn eu tynnu

5.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Ar y catod (-) mae ionau alwminiwm yn cael eu troi'n atomau. Dewiswch yr hafaliad cywir.

Al3+ - 3e- --> Al

Al3+ + 3e- --> Al

Al3+ + e- --> Al

Al3+ - e- --> Al

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Ar y catod (-) mae ionau ocsid yn cael eu troi'n ôl i ocsigen. Dewiswch yr hafaliad/aucywir.

O2- --> O + 2e-

O2- + 2e- --> O

2O2- --> O2 + 4e-

2O2- + 4e- --> O4

7.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Nid oes modd defnyddio carbon i echdynnu alwminiwm gan fod carbon yn rhy _____________

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