Which one of the following does not show hydrogen bonding?
Which one of the following does not show hydrogen bonding?
A. Water
B. Ethyl alcohol
C. Phenol
D. Diethyl ether
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The longest period in the modern periodic table is___________________?
The longest period in the modern periodic table is___________________?A. 6th
B. 7th
C. 2nd and 3rd both
D. 5thWhen CO2 is made to react with ethyl magnesium iodide followed by acid hydrolysis the product formed is _________________?
When CO2 is made to react with ethyl magnesium iodide followed by acid hydrolysis the product formed is _________________?A. propane
B. propanoic acid
C. propanal
D. propanolAtom with higher atomic number produces X-rays of__________________?
Atom with higher atomic number produces X-rays of__________________?A. Shorter wavelength
B. Larger wavelength
C. X-ray not produced
D. All are possible_____________ surfactants perform well over a wide range water hardness and PH?
_____________ surfactants perform well over a wide range water hardness and PH?A. Anionic
B. Cationic
C. Nonionic
D. NeutralCovalent network crystals have_____________?
Covalent network crystals have_____________?
A. higher melting point then molecular crystals
B. lower melting point then molecular crystals
C. discrete molecules linked by Van der waals forces
D. hydrogen bondingColour of fluorescene produced by cathode rays depends upon________________?
Colour of fluorescene produced by cathode rays depends upon________________?A. Temperature
B. Pressure
C. Volume
D. Composition of glass