Which of the following elements is a metal
S
Ga
Se
I
- The most important ore of Aluminium is
- Which of the following is commonly called a polyamide ?
- One fathom is equal to
- The recent atomic weight scale is based on
- Which of the following characters is not shown by hydrogen
- The intencity of Earthquakes is measured on
- Lightening cause rainfall because
- The colour of Emerald is
- Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of
- When a gas is turned into a liquid, the process is called
- Water has maximum density at
- The solar eclipse occurs when
- The fastest acting enzyme in the biological kingdom is
- The removal of top soil by water or wind is called
- Which of the following parts of the sun is easily visible only during a total solar eclipse?
- The type of glass used in making prisms and lenses is
- The chemial name of Uria is
- The hardest substance available on earth is
- In a certain electronic circuit the output is positive if input 1 is positive and input 2 is zero. If…
- What is the unit for measuring the pitch or frequency of sound ?
- Cell membrane is
- Which of the following is in liquid form at room temperature ?
- Which of the following is the lightest metal ?
- Pollination by birds is called
- The major ingredient of leather is
- Polythene is industrially prepared by the polymerisation of
- Apparatus invented by Archimedes is :
- The property of a substance to absorb moisture from the air on exposure is called
- Liquefied Petroleum gas (LPG) consists of mainly
- Earth's seasons are caused by which of the following?