The combustion enthalpies of carbon , hydrogen and methane are -395.5 kJ mol⁻¹
The combustion enthalpies of carbon , hydrogen and methane are -395.5 kJ mol⁻¹,-284.8 kJ mol⁻¹ and -890.4 kJ mol⁻¹ respectively…
7 years ago
AIIMS2000
NaOH is prepared by the electrolysis of
NaOH is prepared by the electrolysis of Options (a) aqueous solution of sodium chloride with platinum electrode (b) sodium chloride…
7 years ago
Baking soda or baking powder is
Baking soda or baking powder is Options (a) washing soda (b) caustic soda (c) soda ash (d) sodium bicarbonate Correct…
7 years ago
Which of the following has a tendency for covalent compound formation
Which of the following has a tendency for covalent compound formation Options (a) Na (b) Mg (c) Ca (d) Ba…
7 years ago
Helium atom is two times heavier than a hydrogen molecule, the average kinetic energy
Helium atom is two times heavier than a hydrogen molecule, At 298 K, the average kinetic energy of the helium…
7 years ago
Which of the following is true about ClO₂
Which of the following is true about ClO₂ Options (a) It is paramagnetic (b) It dimerises in liquid phase (c)…
7 years ago
A gas z is bubbled through a solution containing x⁻ and y⁻. If the reduction
A gas z is bubbled through a solution containing x⁻ and y⁻. If the reduction potential are in the order…
7 years ago
CO₂ is liberated on adding sodium carbonate to a carboxylic acid.The carbon
CO₂ is liberated on adding sodium carbonate to a carboxylic acid.The carbon of CO₂ comes from Options (a) carboxylic group…
7 years ago
Oxidation state of sulphur in S₈, H₂S and S₂F₂ is
Oxidation state of sulphur in S₈, H₂S and S₂F₂ is Options (a) 0, -2, -1 (b) 0, 2, -1 (c)…
7 years ago
Gametes are never hybrid. This is a statement of
Gametes are never hybrid. This is a statement of Options (a) law of dominance (b) law of independent assortment (c)…
7 years ago