Old-written material, which cannot be read easily can be read by
None of these
Ultraviolet rays
Infra Red rays
Cosmic Rays
- The oxide of Nitrogen used in medicine as anaesthetic is
- The metal used in storage batteries
- Which of the following parts of the sun is easily visible only during a total solar eclipse?
- The marine animal called dugong which is vulnerable to extinction is a/an
- The speed of light with the rise in the temperature of the medium
- The major ingredient of leather is
- The solar eclipse occurs when
- What is the unit for measuring the pitch or frequency of sound ?
- The property of a substance to absorb moisture from the air on exposure is called
- Cell membrane is
- Bromine is
- Pollination by birds is called
- Which of the following characters is not shown by hydrogen
- Old-written material, which cannot be read easily can be read by
- Which of the following is commonly called a polyamide ?
- The chemial name of Uria is
- The most important ore of Aluminium is
- Brass gets discoloured in air due to the presence of which gas in air
- The metallic constituents of hard water are
- Quartz crystals normally used in quartz clocks etc. is chemically
- Liquefied Petroleum gas (LPG) consists of mainly
- The accumulation of stress along the boundaries of lithospheric plates results in which of the following?
- According to Daltons atomic theory the smallest particle which can exist independently is
- The fastest acting enzyme in the biological kingdom is
- Which of the following items will be attracted to the north pole of a permanent magnet by a magnet force?
- Which of the following elements is a metal
- When a gas is turned into a liquid, the process is called
- Which of the following elements is non-radioactive?
- The intencity of Earthquakes is measured on
- Polythene is industrially prepared by the polymerisation of