Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of
Sulphonates
Zeolites
Nitrates
None of these
- In a certain electronic circuit the output is positive if input 1 is positive and input 2 is zero. If…
- In an atomic nucleus, neutrons and protons are held together by
- The accumulation of stress along the boundaries of lithospheric plates results in which of the following?
- The location and energy of an electron in an atom can be specified by
- Which of the following elements is non-radioactive?
- The fastest acting enzyme in the biological kingdom is
- The Panda belongs to the same family as that of
- The speed of light with the rise in the temperature of the medium
- The colour of Emerald is
- The recent atomic weight scale is based on
- Which of the following elements is obtained from sea weeds ?
- Which of the following parts of the sun is easily visible only during a total solar eclipse?
- Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of
- Epoxy resins is used as
- Cell membrane is
- Which of the following is most likely to cause a rise in the average temperature of earth's atmosphere…
- The element present in the largest amount in rocks and minerals is
- The metal used in storage batteries
- Nitrification means
- Which of the following is in liquid form at room temperature ?
- The chemial name of Uria is
- The most important ore of Aluminium is
- The oxide of Nitrogen used in medicine as anaesthetic is
- The property of a substance to absorb moisture from the air on exposure is called
- The smallest functional and structural unit of kidney is called as
- Permanent hardness of water can be removed by adding
- Earth's seasons are caused by which of the following?
- Which of the following is commonly called a polyamide ?
- Liquefied Petroleum gas (LPG) consists of mainly
- The fastest-running terrestrial animal is