Which compound shows hydrogen bonding ?
Which compound shows hydrogen bonding ?
A. C2H6
B. C2H5Cl
C. CH3OCH3
D. C2H5OH
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Molten NaCl conducts electricity due to the presence of_______________?
Molten NaCl conducts electricity due to the presence of_______________?A. Free electrons
B. Free molecules
C. Free ions
D. Atoms of Na and ClAmphoteric exides are those which possess ____________ properties?
Amphoteric exides are those which possess ____________ properties?A. Acidic
B. Basic
C. Acidic and basic
D. Neutral and acidicWhich is true about Zn-Cu galvanic cell ?
Which is true about Zn-Cu galvanic cell ?A. Reduction occurs at anode
B. K+ ion transfer from salt bridge to left beaker of ZnSO4
C. Oxidation occurs at cathode
D. Anode is negatively chargedBecause of its ability to combine with both oxygen and nitrogen aluminium metal is used_____________?
Because of its ability to combine with both oxygen and nitrogen aluminium metal is used_____________?A. As nitrometer
B. To remove air bubbles from molten metal
C. To produce alloy
D. As insulatorFor a given mass of a gas at constant temperature, if the value V becomes 3 times, the pressure will becomes__________?
For a given mass of a gas at constant temperature, if the value V becomes 3 times, the pressure will becomes__________?A. 3P
B. P/3
C. 3P/T
D. 6PPeriodic table provides a basic framework to study elements with respect to their__________________?
Periodic table provides a basic framework to study elements with respect to their__________________?A. Physical properties
B. Chemical properties
C. Properties of their compounds
D. All