Which of the following is not a compound?
1 Silica
2 Red lead
3 Slaked lime
4 Black lead
What is condensation? 1 Change of gas into solid 2 Change of solid into liquid 3 Change of vapour into liquid 4 Change of heat energy into cooling energy
the colour of a star is an indication of its?
The element nickel is a 1 Magnetic metal 2 Radioactive metal 3 Non magnetic metal 4 Complex element
Which of the following metals remains in liquid form under normal conditions? 1 Uranium 2 Radium 3 Zinc 4 Mercury
is there any instrument to convert mechanical energy into electrical energy
Epoxy resins are used as 1 Moth repellants 2 Insecticides 3 Detergents 4 Adhesives
What is the Metabolism ?
What is the percent of plazma in blood?
which of the following fibers is generally preferred for making gauze and lint? 1 Cotton 2 Rayon 3 Nylon 4 Terylene
The average salinity of sea water is 1 2% 2 2.5% 3 3% 4 3.5%
Which type of fire extinguisher is used for petroleum fire? 1 Foam type 2 Soda acid type 3 Powder type 4 None of these
Who suggested that most of the mass of the atom is located in the nucleus? 1 Thompson 2 Bohr 3 Rutherford 4 None of these