The p-Block Elements questions
1863 published questions with worked solutions.
- Phosphorus is estimated as
- In Lassaigne's solution, a pink/violet colouration is produced when sodium nitroprusside solution is added. It indicates the...
- The ammonia molecule is
- The element with the next-highest bond energy/tendency for catenation after carbon is
- Benzenesulfonic acid, on treatment with P₂O₅, gives
- The coordination number of Al in AlCl_3 is
- Statement 1: Diamond and graphite are polymorphic forms. Statement 2: Carbon adopts different structural arrangements under...
- Lubricating properties of graphite are diminished in the presence of:
- CFCl_3 is responsible for the decomposition of ozone to oxygen. Which of the following reacts with ozone to form oxygen?
- Ozone is an important constituent of stratosphere because it
- Water is often treated with chlorine to
- In the upper layer of the atmosphere, ozone is formed by the:
- The oxygen present today in the atmosphere:
- The element which can displace the other three halogens from their compounds is
- Chlorine gas is passed into a solution containing KF, KI and KBr, and CHCl_3 is added. The initial colour in the CHCl_3 layer is
- Chlorine cannot displace
- The catalyst used in the lead chamber process of H _2 SO _4 manufacture is
- The catalyst used in the contact process of sulphuric acid is:
- The catalyst used in the chamber process of sulphuric acid is:
- Ostwald's process involves the oxidation of ammonia to 'Y' in the presence of a platinum gauze. How many atoms of nitrogen is/are...
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