19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Choose the correct option from the codes given below regarding elements and their characteristics colour given in Column I and II of the following table. Column I Column II A. Li 1. Crimson red B. Na 2. Yellow C. K 3.…
Molecular formula of Glauber’s salt is (JCECE 2010)
The correct trend of melting point and boiling point of alkali metal halides
Choose the correct statement/statement out of the following (a) f H always became less negative on moving top to bottom for alkali halides (b) f H always becomes less negative from fluoride to iodide for alkali me…
Low solubility of LiF in water is due to …A… Here, A refer to
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)
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)
Match List-I with List-II. List-I List-II
Crude sodium chloride obtained by crystallisation of brine solution does not contain (Odisha NEET 2019)
Which of the alkali metal chloride (MCl) forms its dihyrate salt (MCl.2H2O) easily? (Odisha NEET 2019)
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
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)
Which of the following oxides is most acidic in nature? (NEET 2018)
Which of the following is an amphoteric hydroxide? (NEET 2019)
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)
In context with beryllium, which one of the following statements is incorrect? (NEET 2016)
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)
Low solubility of CsI is due to
The suspension of slaked lime in water is (NEET 2016)
Gypsum on heating to 390 K gives. (RPMT 2010)
The ionic mobility of alkali metal ions is aqueous solution is maximum for (RPMT 2010)
Epsom salt is (RPMT 2010)
The yellow coloured flame is of (MP PMT 2010)