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Hydrides and solutions in liquid ammonia

27 questions on Hydrides and solutions in liquid ammonia from the s-Block Elements chapter: 6 NEET level, 11 JEE Main, 10 JEE Advanced. Each one opens with its answer and solution.

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Which of the following statements about ionic (saline) hydrides such as CaH2 and NaH are correct? JEE Main level
Ammonium chloride is added in small portions to a blue solution of sodium in liquid ammonia. What is observed, and what are the products? JEE Main level
Which of the following is a saline (ionic) hydride? NEET level
The blue colour of a dilute solution of sodium in liquid ammonia is due to JEE Main level
Which of the following statements about solutions of alkali metals in liquid ammonia are correct? JEE Advanced level
Liquid ammonia undergoes autoionisation. Which option gives the ions formed and the strongest base that can persist in liquid ammonia? JEE Main level
Sodium hydride (2.4 g) is heated with excess CO2 to give sodium formate, which is then heated to give sodium oxalate and hydrogen. Assuming 100% yield in both s... JEE Advanced level
Beryllium hydride is made from BeCl2 and LiAlH4. It is hydrolysed completely by water to give a gas and a hydroxide, and that hydroxide dissolves in excess aque... JEE Advanced level
Which statement about sodium hydride is correct? JEE Main level
Which equation correctly represents the preparation of lithium aluminium hydride (in dry ether)? JEE Main level
Which gas is liberated when calcium hydride reacts with water? NEET level
A grey-white solid X is formed when a metal that gives a brick-red flame is heated in hydrogen at about 700 K. X reacts violently with water to give a gas Y and... JEE Advanced level
In liquid ammonia, NH4Cl behaves as an acid and NaNH2 as a base. What mass of NaNH2 is needed to neutralise 5.35 g of NH4Cl in liquid ammonia? (H = 1, N = 14, N... JEE Advanced level
Match the hydride in Column I with its description in Column II. Column I: (P) LiH, (Q) BeH2, (R) B2H6, (S) CH4. Column II: (1) saline (ionic) hydride, (2) poly... JEE Main level
Calcium hydride reacts with heavy water. Which gas is evolved? JEE Main level
A dilute solution of an alkali metal in liquid ammonia conducts electricity because it contains NEET level
Which of the following hydrides liberate H2 with water and give a solution that turns red litmus blue? JEE Advanced level
0.46 g of sodium is dissolved completely in liquid ammonia (the solution is kept free of catalyst), and excess NH4Cl is then added. What volume of H2 is liberat... JEE Advanced level
Which s-block hydride is covalent and polymeric in nature? NEET level
On standing in the presence of a catalyst such as rusted iron, a solution of sodium in liquid ammonia slowly gives hydrogen and an ionic compound. The compound ... NEET level
Assertion (A): A concentrated solution of sodium in liquid ammonia is diamagnetic. Reason (R): At high concentration all the ammoniated electrons remain unpaire... JEE Main level
Which of the following statements about sodium hydride are correct? JEE Advanced level
Among LiH, NaH, KH and CsH, which hydride has the highest ionic character? JEE Main level
A dilute solution of sodium in liquid ammonia is NEET level
The ion product of liquid ammonia, [NH4+][NH2-], is about 1x10^-30 at 223 K. Which of the following statements are correct? JEE Advanced level
A 2.88 g mixture of calcium metal and calcium hydride reacts completely with excess water and liberates 2.464 L of hydrogen at STP. Using Ca = 40, H = 1 and mol... JEE Advanced level
Which statement is correct for a concentrated solution (above about 3 M) of an alkali metal in liquid ammonia? JEE Main level