19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Among the alkali metals, cesium is the most reactive because (RPMT 2010)
The ionic mobility of alkali metal ions is aqueous solution is maximum for (RPMT 2010)
Gypsum on heating to 390 K gives. (RPMT 2010)
Epsom salt is (RPMT 2010)
Molecular formula of Glauber’s salt is (JCECE 2010)
Which of the following alkaline earth metal sulphates is least soluble in water? (Haryana PET 2010)
Which of the alkali metal chloride (MCl) forms its dihyrate salt (MCl.2H2O) easily? (Odisha NEET 2019)
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)
The following metal ion activates many enzymes, participates in the oxidation of glucose to produce ATP and with Na, is responsible for the transmission of nerve signals (NEET 2020)
HCl was passed through a solution of CaCl2, MgCl2 and NaCl. Which of the following compound(s) crystallise(s)? (NEET 2020)
The structure of beryllium chloride in solid state and vapour phase, are: (NEET 2021)
Among the following alkaline earth metal halides, one which is covalent and soluble in organic solvents is: (NEET 2021)
Identify the incorrect statement from the following (NEET 2022)
Match List-I with List-II. List-I List-II
Among the following element the non-radioactive elements(s) is/are
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 i…
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 …
The most electropositive alkali metal is
Which of he following is/are less soluble in water? LiF, CsI, NaCl, KCl
The suspension of slaked lime in water is (NEET 2016)
Which one of the following has magnesium?
Choose the incorrect statement among the following.
‘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’?
[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