MEDIUM
8th CBSE
IMPORTANT
Earn 100

An iron key is electroplated with copper.
Draw a circuit diagram of the setup used to electroplate an iron spoon with copper.

Important Questions on Yearly Examination

EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 22 - Yearly Examination>Yearly Examination>Q 1
Name the organelle that provides a cell with energy for life processes.
MEDIUM
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 22 - Yearly Examination>Yearly Examination>Q 3
Classify the following elements into metals and non-metals:
carbon, chlorine, zinc, magnesium, phosphorus, sulphur, silver, barium.
MEDIUM
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 22 - Yearly Examination>Yearly Examination>Q 21
Draw a ray diagram describing a method to locate the image of an object placed 4 cm in front of a plane mirror.
MEDIUM
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 22 - Yearly Examination>Yearly Examination>Q 22
The father of a child contributes an X chromosome to the child. Is the child a boy or a girl?
EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 22 - Yearly Examination>Yearly Examination>Q 23
Two forces P and Q act on an object in the same direction and P>Q. The net force on the object is _____.
MEDIUM
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 22 - Yearly Examination>Yearly Examination>Q 24
A, B, C and D produce sounds of frequency 2 Hz, 3 kHz, 30,000 Hz and 40 kHz respectively. Which of these sounds can most humans hear?
EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 22 - Yearly Examination>Yearly Examination>Q 25
Name a metal that can be deposited on iron to prevent corrosion.
EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 22 - Yearly Examination>Yearly Examination>Q 27
When a card with the word Question Image written on it is observed in the mirror, which of the following images will be seen?