Hydrogen — practice questions
48 curated practice questions from Hydrogen (Chemistry JEE Advanced, NTA Exams) — 41 hard, 7 medium. Every question includes the final answer free; step-by-step worked solutions with a free account.
- Mark the following statements as true or false. (i) Ordinary hydrogen is a mixture of 75% ortho and 25% para forms…
- Two structure of H 2 O 2 and drawn below. Identify the phases X and Y of H 2 O 2 .
- Water gas is mixed with steam and the mixture is passed over heated Fe 2 O 3 in presence of Cr 2 O 3 . The mixture when…
- Assertion (A) : Permanent hardness of water is removed by treatment with washing soda. Reason (R) : Washing soda reacts…
- Alkenes combine with carbon monoxide and hydrogen in presence of octacarbonyldicobalt as catalyst under high…
- Assertion (A) : In winter season ice formed on the surface of a lake provides thermal insultation. Reason (R) : It…
- When zeolite, which is hydrated sodium aluminium silicate, is treated with hard water the sodium ions are exchanged with
- Hydrogen peroxide in its reaction with KIO 4 and NH 2 OH respectively, is acting as a
- Assertion (A) : Reason (R) : acts as an oxidising agent in the acidic medium.
- Assertion (A) : Hard water does not give lather with soap. Reason (R) : Hard water contains calcium and magnesium salts…
- Which of the following statements is correct regarding hydrogen ?
- Which of the following statements regarding hydrogen peroxide is false ?
- Polyphosphates are used as water softening agents because they (2002)
- Which of the following statements regarding hydrides is not correct ?
- Assertion (A) : Reason (R) : acts as a reducing agent in the acidic medium.
- Carbon hydride of the type, C n H 2n+2 do not act as Lewis acid or Lewis base. They behave as normal covalent hydrides…
- Among NH 3 , H 2 O, HF and H 2 S which would have highest magnitude of hydrogen bonding ?
- The oxidation states of the most electronegative element in the products of the reaction, BaO 2 with dil. H 2 SO 4 is
- Assertion (A) : : Hydrogen is the first element in the Periodic Table. Reason (R) : : It has electronic configuration
- What will be the mass of oxygen liberated by decomposition of 200 mL hydrogen peroxide solution with a strength of 34g…
- In complex hydrides, hydride ions act as ligand and are coordinated to metal ions. These hydrides are good reducing…
- Assertion (A) : Hard water forms scum/precipitate with soap. Reason (R) : Formation of scum occurs as M is Ca/Mg
- Polyphosphates like sodium hexametaphosphate (calgon) are used as water softening agents because they
- Which gas is produced when calcium nitride (Ca 3 N 2 ) is hydrolysed by water ?
- Assertion (A) : Reason (R) : acts as reducing agent in the medium.
- Given below are the elements and the type of hydrides formed by them. Mark the incorrect match
- Which of the following reactions of hydrogen with non-metals represents Haber’s process ?
- The isotopes of hydrogen have different physical properties due to difference in mass. They have almost same chemical…
- is reduced to by using (2015)
- Hydrogen peroxide in its reaction with KIO 4 and NH 2 OH respectively, is acting as a (2014)
- A metal (M) produces a gas (N) on reaction with alkalies like NaOH and KOH. Same gas is produced when the metals reacts…
- What is the reaction given below called ?
- Assertion (A) : Hydrogen is extremely small in size as compared to the normal atomic and ionic sizes of 50 to 200 pm…
- In which of the following properties hydrogen does not show similarity with alkali metals ?
- The oxide that gives hydrogen peroxide on treatment with a dilute acid is
- Assertion (A) : Reducing power of nascent hydrogen is more than atomic hydrogen Reason(R) Bond energy of is maximum.
- A commercial sample of hydrogen peroxide is labeled as 10 volume. Its percentage strength is nearly
- Last traces of water is removed from H 2 O 2 by
- When CO 2 is bubbled through a solution of barium peroxide in water
- The sum of the number of neutrons and protons in the isotope of hydrogen is
- Which of the following option regarding heavy water is correct?
- A gas X is passed through water to form a saturated solution. The aqueous solution on treatment with silver nitrate…
- The temporary hardness of water due to calcium bicarbonate can be removed by adding
- Which one is correct statement for H 2 O 2
- The production of dihydrogen obtained from coal gasification can be increased by reacting carbon monoxide of syngas…
- Given below are the two reactions of H 2 O 2 . Mark the correct statement which follows. (i) 2KMnO 4 + 3H 2 SO 4 + 5H 2…
- Assertion (A) : The crystalline form of water is ice. Reason (R) : At atmospheric pressure ice crystallizes in the…
- A sodium salt on treatment with MgCl 2 gives white precipitate only on heating. The anion of the sodium salt is (2004)