List of top Science Questions

Duralumin is an alloy of which metal?
The valency of all elements in a group of the periodic table is:
What is the number of elements in the third group of the periodic table?
The molecular formula of sodium phosphate is:
Which is used in a solar cell?
Hydrilla is found:
Systolic blood pressure of a healthy person is:
In fish, respiration takes place through:
An example of a bisexual organism is:
An example of plant hormone is:
Vegetative propagation in potato takes place by:
In which of the following organisms does asexual reproduction occur through budding?
The maximum number of electrons in a shell is:
Which of the following metals has the lowest melting point?
The atomic number of gold is:
Which of the following is a salt?
Depletion of the ozone layer is due to:
Which hydrocarbon is the simplest compound?
Which is the conventional source of energy?
How many bonds are there between two atoms in a molecule of nitrogen?
Zinc blende is an ore of which metal?
Kilowatt-hour (kWh) is the unit of:
The general formula of alkyne is:
How many crystalline allotropes of carbon are there?
The hardest natural substance is: