Portland cement contains the following amount of CaO
Portland cement contains the following amount of CaO Options (a) 5-15% (b) 20-35% (c) 50-60% (d) 70-80% Correct Answer: 50-60%Explanation:No…
8 years ago
Questions
Which one of the following has an aromatic character
Which one of the following has an aromatic character Options (a) Cyclopentadiene (b) Cycloheptatrienylium cation (c) cyclopropyne (d) Cycloheptatrienyl anion…
8 years ago
Nitrogen is obtained by the thermal decomposition of
Nitrogen is obtained by the thermal decomposition of Options (a) NH₄NO₃ (b) Pb(NO₃)₂ (c) NH₄NO₂ (d) AgNO₃ Correct Answer: NH₄NO₂Explanation:No…
8 years ago
Aspirin is obtained by the reaction of salicylic acid with
Aspirin is obtained by the reaction of salicylic acid with Options (a) acetic acid (b) acetaldehyde (c) acetone (d) acetic…
8 years ago
Which of the following is the most electronegative element?
Which of the following is the most electronegative element? Options (a) Bromine (b) Chlorine (c) Flourine (d) Iodine Correct Answer:…
8 years ago
If a gas expands at constant temperature , it indicates that
If a gas expands at constant temperature , it indicates that Options (a) kinetic energy of molecules remains the same…
8 years ago
Primary,secondary and tertiary amines can be distinguished by
Primary,secondary and tertiary amines can be distinguished by Options (a) Schiff's test (b) Fehling's test (c) Tollent's test (d) Hinsberg's…
8 years ago
If Ksp for HgSO₄ is 6.4 x 10⁻⁵, then solubility of the salt is
If Ksp for HgSO₄ is 6.4 x 10⁻⁵, then solubility of the salt is Options (a) 6.4 x 10⁻⁵ (b)…
8 years ago
Which of the following statement is not applicable to chemisorption
Which of the following statement is not applicable to chemisorption Options (a) It is highly specific (b) It is slow…
8 years ago
The reaction of chloroform with ethylamine in alcoholic alkali gives
The reaction of chloroform with ethylamine in alcoholic alkali gives Options (a) C₂H₅CN (b) C₂H₅Cl (c) C₃H₇Cl (d) C₂H₅NC Correct…
8 years ago