According to Daltons atomic theory the smallest particle which can exist independently is
An atom
A cation
A molecule
An anion
- The intencity of Earthquakes is measured on
- Which of the following is in liquid form at room temperature ?
- Which of the following elements is obtained from sea weeds ?
- Old-written material, which cannot be read easily can be read by
- The recent atomic weight scale is based on
- Which of the following characters is not shown by hydrogen
- Which of the following items will be attracted to the north pole of a permanent magnet by a magnet force?
- The fastest acting enzyme in the biological kingdom is
- When a gas is turned into a liquid, the process is called
- Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of
- Which of the following parts of the sun is easily visible only during a total solar eclipse?
- Bromine is
- The solar eclipse occurs when
- Water has maximum density at
- The colour of Emerald is
- The accumulation of stress along the boundaries of lithospheric plates results in which of the following?
- Apparatus invented by Archimedes is :
- Cell membrane is
- The removal of top soil by water or wind is called
- Earth's seasons are caused by which of the following?
- Pollination by birds is called
- The hardest substance available on earth is
- Which of the following is the lightest metal ?
- Rust is
- The smallest functional and structural unit of kidney is called as
- The location and energy of an electron in an atom can be specified by
- The metallic constituents of hard water are
- Lightening cause rainfall because
- In an atomic nucleus, neutrons and protons are held together by
- The type of glass used in making prisms and lenses is