19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
[X] and [Y] are two nitrates of alkali metals [X] and [Y] on decomposition produces oxides and nitrites respectively. Here, [X] and [Y] refer to
A chemical (A) is used for the preparation of washing soda to recover ammonia. When CO₂ is bubbled through an aqueous solution of A, the solution turns milky. It is used white washing due to disinfectant nature. What …
Hydrogen carbonate of lithium doesn’t exist in solid state due to
Chemical clinker can be obtained by the reaction of
On moving top to bottom among a group the correct trend of hydration enthalpies for alkali metal ions is
What will be the oxidation state of nitrogen and alkali metal when the nitrogen and alkali metal react with each other?
‘A’ is an important constituent of cement which is responsible for setting of cement. What is the number of water of crystallization present in ‘A’?
Group II elements with exceptions of beryllium are known as alkaline earth metals. These are so called because their …A…and …B… are alkaline in nature. Here, A and B refer to
Crude sodium chloride obtained by crystallisation of brine solution does not contain (Odisha NEET 2019)
Which of the following is an amphoteric hydroxide? (NEET 2019)
Which of the alkali metal chloride (MCl) forms its dihyrate salt (MCl.2H₂O) easily? (Odisha NEET 2019)
HCl was passed through a solution of CaCl₂, MgCl₂ and NaCl. Which of the following compound(s) crystallise(s)? (NEET 2020)
In context with beryllium, which one of the following statements is incorrect? (NEET 2016)
Among CaH₂, BeH₂, BaH₂, the order of ionic character is (NEET 2018) (a) CaH BeH BaH (b) BeH BaH CaH (c) BeH CaH BaH (d) BaH BeH CaH
Magnesium reacts with an element (X) to form an ionic compound. If the ground state electronic configuration of (X) is 1s2 2s2 2p3, the simplest formula for this compound is (NEET 2018)
Which of the following statements(s) is/are incorrect regarding the s-block elements? I. Francium is highly radioactive element. II. Oxides and hydroxides of alkali metals and alkaline earth metals are not alkaline in…
Which of the following alkaline earth metal sulphates is least soluble in water? (Haryana PET 2010)
Which one of the following is present an an active ingredient in bleaching powder for bleaching action? (AIPMT 2011)
Which of the following compounds has the lowest melting point? (AIPMT 2011)
Which of the following is/are correct pair(s) regarding diagonally related elements?
Among the alkali metals …A and …B… are relatively more abundant in nature. Here A and B refer to
Which of the following does not belong to alkaline earth metal?
…X and …Y…Shown diagonal similarity. Here, X and Y refer to
Which of the following shows diagonal relationship?
Match List-I with List-II. List-I List-II