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General trends of alkali and alkaline earth metals

28 questions on General trends of alkali and alkaline earth metals from the s-Block Elements chapter: 5 NEET level, 11 JEE Main, 12 JEE Advanced. Each one opens with its answer and solution.

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Which of the following statements about alkali metals and their compounds are correct? JEE Advanced level
Which of the following statements are correct? JEE Advanced level
Which of the following statements are correct? JEE Advanced level
Equal masses of Na2O2 and KO2 are separately treated with excess CO2 (giving the metal carbonate and O2). What is the ratio of volume of O2 from KO2 to that fro... JEE Advanced level
For four hypothetical salts the lattice enthalpy (magnitude, energy released when the solid forms from gaseous ions) and the sum of the hydration enthalpies of ... JEE Advanced level
Match the metal ion in Column I with the flame colour in Column II. Column I: (P) Na+, (Q) K+, (R) Ca^2+, (S) Ba^2+. Column II: (1) golden yellow, (2) lilac, (3... JEE Main level
Lithium nitrate decomposes on strong heating according to a balanced equation giving the oxide. How many moles of gaseous products are obtained per mole of LiNO... JEE Main level
Which of the following statements are correct? JEE Advanced level
Which sulphate is the most soluble in water at room temperature? JEE Main level
Which of the following compounds is paramagnetic? JEE Main level
A 2.00 g mixture of Na2CO3 and NaHCO3 is heated to constant mass and loses 0.31 g (Na2CO3 does not decompose). What is the percentage by mass of NaHCO3 in the m... JEE Advanced level
Which of the following carbonates has the highest decomposition temperature? JEE Main level
Which of the following arranges the ions in decreasing order of magnitude of enthalpy of hydration? JEE Main level
Which of the following statements about alkali metals are correct? JEE Main level
A 10.00 g sample of pure NaHCO3 is heated until the mass is constant, according to 2NaHCO3 -> Na2CO3 + H2O + CO2. Using atomic masses H = 1, C = 12, O = 16, Na ... JEE Main level
A metal M reacts slowly with dry N2 even at room temperature to give a nitride X. X reacts with water to give a gas that turns moist red litmus blue. Which opti... JEE Advanced level
Among the alkali metal ions in aqueous solution, which has the largest hydrated radius? NEET level
In a flame test, which ion imparts an apple-green colour to the flame? NEET level
Which of the following sets contains only properties that lithium shares with magnesium but not with sodium? JEE Advanced level
The solubility of the sulphates of group 2 decreases from Mg to Ba, whereas the solubility of the hydroxides increases. Which explanation is correct? JEE Advanced level
Which alkali metal has the highest first ionisation enthalpy? NEET level
The enthalpy of sublimation, first ionisation enthalpy and hydration enthalpy of the gaseous ion (all in kJ mol^-1) are: Li (159, 520, -519), Na (107, 496, -406... JEE Advanced level
Which of the following statements about the alkaline earth metals and their compounds are correct? JEE Main level
Assertion (A): Lithium has the most negative standard electrode potential of all alkali metals (-3.04 V) even though it has the highest first ionisation enthalp... JEE Main level
Which of the following carbonates decomposes to the oxide and CO2 on moderate heating, whereas the carbonates of the other alkali metals are thermally stable? NEET level
Among the following elements, which has the largest ratio of second ionisation enthalpy to first ionisation enthalpy, IE_2/IE_1? JEE Main level
Which pair of elements shows a diagonal relationship? NEET level
A white solid A decomposes on strong heating to a solid B and a gas C. B reacts vigorously with water giving a suspension D used in whitewashing. Passing C into... JEE Advanced level