Magnetic Effects of Electric Current — Science STD 10 — Question

The sex chromosome for a male are XX where that for a female are XY. [True/ False]

State whether the following statement is true or false :
Non-metals react with dilute acids to produce a gas which burns with a ‘pop’ sound.

State whether the following statements are true or false:
Energy can be produced in cells without oxygen.

Lion has three-chambered heart. [True/ False]

State whether the following statements are true or false,
The field at the centre of a long circular coil carrying current will be parallel straight lines.

State whether the following statement is true or false:
The aqueous solution of an ionic compound conducts electricity because there are plenty of free electrons in the solution.

State whether the following statements are true or false:

1. The scattering away of red light makes the sky appear blue during the day time.
2. The scattering away of blue light makes the sun appear red at sunset.

Looming happens due to total internal reflection. [True/ False]

State whether the following statement is true or false:
A diverging mirror is used as a rear-view mirror.