Which of the following is the lightest metal ?
Mercury
Lithium
Lead
Silver
- Quartz crystals normally used in quartz clocks etc. is chemically
- Which of the following is in liquid form at room temperature ?
- The smallest functional and structural unit of kidney is called as
- Pollination by birds is called
- Which of the following is the lightest metal ?
- Permanent hardness of water can be removed by adding
- Epoxy resins is used as
- When a gas is turned into a liquid, the process is called
- The chemial name of Uria is
- The solar eclipse occurs when
- The hardest substance available on earth is
- The metal used in storage batteries
- The location and energy of an electron in an atom can be specified by
- The recent atomic weight scale is based on
- Which of the following elements is a metal
- Rust is
- Brass gets discoloured in air due to the presence of which gas in air
- What is the unit for measuring the pitch or frequency of sound ?
- The marine animal called dugong which is vulnerable to extinction is a/an
- The type of glass used in making prisms and lenses is
- Which of the following items will be attracted to the north pole of a permanent magnet by a magnet force?
- One fathom is equal to
- The metal that is present in Photo Films is
- The property of a substance to absorb moisture from the air on exposure is called
- The element present in the largest amount in rocks and minerals is
- The accumulation of stress along the boundaries of lithospheric plates results in which of the following?
- Which of the following elements is obtained from sea weeds ?
- Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of
- Apparatus invented by Archimedes is :
- The fastest acting enzyme in the biological kingdom is