NCERT Exemplar XIII — task. Science CBSE, Class 10.

PDF chapter test TRY NOW

1. Reaction between X and Y, forms compound Z. X loses electron and Y gains electron. Which of the following properties is not shown by Z?

Has low melting point
Occurs as solid
Conducts electricity in molten state
Has high melting point

2. The electronic configurations of three elements X, Y and Z are X —

$2, 8$ ; Y —

$2, 8, 7$ and Z —

$2, 8, 2$ . Which of the following is correct?

Z is a non-metal
Y is a non-metal and Z is a metal
Y is a metal
X is a metal

Login or Fast registration

Previous exercise

Exit to the topic

Did you find an error?

Register for free to see more content

Register for free to see more content