Which of the halogen can displace other three elements ?
Which of the halogen can displace other three elements ?
A. Flourine
B. Chlorine
C. Iodine
D. Bromine
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The compound or complex ion which has a ring in its structure__________________?
The compound or complex ion which has a ring in its structure__________________?A. polydentate ligand
B. chelate
C. monodentate ligand
D. hydrateThe density of water may be__________________?
The density of water may be__________________?A. Equal to that of ice
B. Greater than that of ice
C. Less than that of ice
D. All are possibleWhich of the following reagents will react with both aldehydes and ketones ?
Which of the following reagents will react with both aldehydes and ketones ?A. Grignard reagent
B. Tollens reagent
C. Fehlings reagent
D. Benedicts reagentThe nucleus of an atom of every element will always contain____________________?
The nucleus of an atom of every element will always contain____________________?A. neutrons
B. protons and electrons
C. protons
D. protons and neutronsSoda lime is a mixture of____________________?
Soda lime is a mixture of____________________?A. CaO and KOH
B. CaO and NaOH
C. NaOH and Na2O
D. Na2O and KOHThe weakest (in strength) of the following intermolecular forces is_______________?
The weakest (in strength) of the following intermolecular forces is_______________?A. Hydrogen bonding
B. Vander Waals force
C. Forces among the polar molecules
D. Ionic bond