Popular Questions
- Which one of the following substances is used in the laboratory for a fast drying of neutral gases
- The hydride ion H- is a stroger base than its hydroxide ion OH-
- Which of the following statements about hydrogen is incorrect
- Chemical A is used for water softening to remove temporary hardness
- Which of the following reaction produces hydrogen
- Hydrogen can be prepared by the action of dil
- Spin isomerism is shown by
- When some amount of zinc is treated separately with excess of sulphuric acid and axcess of sodium hydroxide solution the ratio of ..
- Which is used as hydrogen generators
- On reaction with Mg, very dilute nitric acid produces
- The most abundant element in the universe is thought to be
- The dielectric constant of H2O is 80. The electrostatic force of attraction between Na+ and Cl- will be
- The volume strength of 1.5 N H2 O2 solution is
- Commercial sample of H2O2 is labeled as 10 V. Its per strength is nearly
- Calgon used as a water softener is
- Permanent hardness can be removed by adding
- Which of the following is an example of interstitial hydride ?
- Which cannot be oxidised by H2O2 ?
- The volume of oxygen liberated from 0.68 g of H2O2 is
- Ka of H2 O2 is of the order of
- What is formed when calcium carbide react with heavy water?
- The oxidation number of oxygen in hydrogen peroxide is
- The production of dihydrogen gas via gas shift reaction,
- Hydrogen is prepared on large scale for industrial use
- The ortho and para hydrogen differ in respect of which of the following?
- Adsorbed hydrogen by palladium is known as
- Hydrogen is not obtained when Zn reacts with
- Which of the following is responsible for the hardness of water?
- When H2O2 is shaken with an acidified solution of K2 Cr2O7 in the presence of ether, the ethereal layer turns blue due to the form..
- Which of the following is not correct for D2O ?
- The normality of 30 volume H2O2 is
- Moist hydrogen peroxide cannot be dried over conc. H2SO4 because
- The strength of 10 volume of H2O2 solution is
- Which of the following statements is correct? Dielectric constant of H2O2
- In transforming 0.01 mole of PbS to PbSO4, the volume of 10 volume H2O2 required will be
- Heavy water is represented as
- blackened oil painting can be restored into original from by the action of
- polyphosphates are used as Water softening agents because
- the reagent commonly used to determine hardness of water titimetrically is
- the H-O-O bond angle in H2 O2 is
