According to Daltons atomic theory the smallest particle which can exist independently is
An atom
A cation
A molecule
An anion
- Quartz crystals normally used in quartz clocks etc. is chemically
- The colour of Emerald is
- The marine animal called dugong which is vulnerable to extinction is a/an
- Pollination by birds is called
- Water has maximum density at
- Rust is
- Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of
- Lightening cause rainfall because
- The most important ore of Aluminium is
- Glass is made from the mixture of
- Polythene is industrially prepared by the polymerisation of
- Bromine is
- Which of the following is the lightest metal ?
- The oxide of Nitrogen used in medicine as anaesthetic is
- Which of the following is most likely to cause a rise in the average temperature of earth's atmosphere…
- In an atomic nucleus, neutrons and protons are held together by
- Nitrification means
- What is the unit for measuring the pitch or frequency of sound ?
- Cell membrane is
- Permanent hardness of water can be removed by adding
- When a gas is turned into a liquid, the process is called
- Apparatus invented by Archimedes is :
- In a certain electronic circuit the output is positive if input 1 is positive and input 2 is zero. If…
- The accumulation of stress along the boundaries of lithospheric plates results in which of the following?
- Earth's seasons are caused by which of the following?
- Carbon tetrachloride fire extinguisher should not be used in closed room because it produces poisonous…
- Old-written material, which cannot be read easily can be read by
- Which of the following is in liquid form at room temperature ?
- The metal that is present in Photo Films is
- According to Daltons atomic theory the smallest particle which can exist independently is