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
Which of the following metal do not form salt with ethyne?
Why lithium compound are soluble in organic solvent?
On moving top to bottom the negative value of formation …A… for fluoride of alkali metals. Here, A refer to
Hydrogen carbonate of lithium doesn’t exist in solid state due to
Which of he following is/are less soluble in water? LiF, CsI, NaCl, KCl
The most electropositive alkali metal is
Which of the following statement(s) is/are incorrect regarding property of alkali metals? I. Alkali metal on reaction with water produces a gas as a byproduct which burns with poping sound. II. Alkali metals dissolve …
In concentrated solution, the colour of alkali metals in liquid ammonia is
What will be the oxidation state of nitrogen and alkali metal when the nitrogen and alkali metal react with each other?
The colour of alkali metal ions in any sample can be detected by
The most correct reason for colour of alkali metal ions is
Ionic mobility of which of the following alkali metal ions is lowest when aqueous solution of their salts is put under an electric field? (NEET 2017)
The suspension of slaked lime in water is (NEET 2016)
In context with beryllium, which one of the following statements is incorrect? (NEET 2016)
Solubility of the alkaline earth metal sulphates in water decreases in the sequence (AIPMT 2015)
Which one of the alkali metals forms only, the normal oxide, M2O on heating in air? (AIPMT 2012)
Which of the following compounds has the lowest melting point? (AIPMT 2011)
Which one of the following is present an an active ingredient in bleaching powder for bleaching action? (AIPMT 2011)
For alkali metals, which one of the following trends is incorrect? (KCET 2010)
Correct order of stability of group IIA metal carbonates is (OJEE 2009)
Among the following, the least thermally stable is (J & K CET 2009)
Which of the following will give H2 gas with dilute HNO3? (CPMT 2009)
Which physical property in the alkali metal group increases with atomic number? (AMU 2009)
In the case of alkali metals, the covalent character decreases in the order, (CBSE AIPMT 2009)