Benzene is oxidized by H2O2 in presence of FeSO4 to:
1. phenol
2. cyclohexane
3. benzaldehyde
4. benzoic acid
An industrial method of preparation of Hydrogen peroxide is -
1. Action of H2SO4 on barium peroxide
2. Action of H2SO4 on sodium peroxide
3. Auto-oxidation of 2-alkylanthraquinols.
4. Burning hydrogen in excess of oxygen
The ortho and para hydrogen possess:
1. same physical properties but different chemical properties
2. different physical properties but same chemical properties
3. same chemical and physical properties
4. different physical and chemical properties
A 1000 g aqueous solution of CaCO3 contains 10 g of calcium carbonate. The hardness of the solution is:
1. 10 ppm
2. 100 pm
3. 1000 ppm
4. 10000 ppm
Hydrogen adsorbed on palladium is known as:
1. Atomic H
2. Nascent H
3. Occluded H
4. Heavy H
On partial hydrolysis of one mole of peroxodisulphuric acid produces
1. two moles of sulphuric acid
2. two moles of peroxomonosulphuric acid
3. one mole of sulphuric acid and one mole of peroxomonosulphuric acid
4. one mole of sulphuric acid, one mole of peroxomonosulphuric acid and one mole of hydrogen peroxide.
acts as antiseptic due to its –
(1) Reducing property
(2) Oxidising property
(3) Bleaching property
(4) Acidic property
The most reactive state of hydrogen is –
(1) Atomic hydrogen
(2) Heavy hydrogen
(3) Molecular hydrogen
(4) Nascent hydrogen
In which of the following compounds, hydrogen exists in the atomic state –
1. Metallic hydrides
2. Ionic hydrides
3. Molecular hydrides
4. Water
100 ml of a sample of hard water required 25.1 ml of 0.02 (N) for complete reaction. What is the hardness of the given water sample ? (sp. gravity of given water sample = 1 gm/ml)
(A) 200 ppm
(B) 250 ppm
(C) 251 ppm
(D) 258 ppm
Hydrogen peroxide does not
(1) Liberate iodide from
(2) Turn the titanium salt yellow
(3) Give silver peroxide with moist silver oxide
(4) Turn the mixture of aniline, and dilute violet
What mass of hydrogen peroxide is present in 2 litre solution of 4M strength ? Calculate the volume of oxygen at S.T.P. liberated upon complete decomposition of 400 of the above solution.
(A) 172g, 0.92 L
(B) 272g, 1.32 L
(C) 272g, 17.92 L
(D) 172g, 15.14 L