Which one of the following has the maximum number of isotopes ?
Which one of the following has the maximum number of isotopes ?
A. oxygen
B. carbon
C. tin
D. chlorine
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The central atom along with ligands is called____________________?
The central atom along with ligands is called____________________?A. complex ion
B. coordination sphere
C. ligand
D. complex compoundFor a given process the heat changes at constant pressure (qp) and at constant volume (qv) are related to each other as___________________?
For a given process the heat changes at constant pressure (qp) and at constant volume (qv) are related to each other as___________________?A. qp = qv
B. qp < qv
C. qp > qv
D. qp = qv / 2Mixture of catalysts Cr2O3 + A?2O3 + SiO2 at 500?C are used when benzene is prepared from_______________?
Mixture of catalysts Cr2O3 + A?2O3 + SiO2 at 500?C are used when benzene is prepared from_______________?A. acetylene
B. N-hexane
C. Benzene sulphonic acid
D. Sodium benzoateMolecular mass of water (18g) means__________________?
Molecular mass of water (18g) means__________________?A. 1-mole molecules of water
B. 1-gram molecule of water
C. 3-gram atoms
D. allAddition of 2% gypsum in cement________________?
Addition of 2% gypsum in cement________________?A. Triggers hydration
B. Triggers hydrolysis
C. Prevents rapid hardening
D. all of the aboveWhich one of the following alcohol has greater boiling point___________________?
Which one of the following alcohol has greater boiling point___________________?A. ethanol
B. ethylene glaycol
C. glycerol
D. methanol