Past Papers Mcqs Flashcards
(58 cards)
In chromatography, k stands for
Distribution coefficient
Most ideal gas at room temperature is:
Helium
Most ideal gas at room temperature from the following is:
CO2 Nh3
SO2 N2
N2
Which is an amorphous solid?
Rubber, plastic, glass etc
In liquids, intermolecular forces are:
When spectrum of hydrogen atom is taken in magnetic field, some new
lines are created. This is called;
Zeeman’s effect
Halogens on treating with silver salts of acids give
Alkyl halide
The carbon of carbonyl is
sp2 hybridized
The term aromatic was derived from
Greek word
The reaction of alcohol with SOCl2 in the presence on pyridine as catalyst gives
Alkyl halide
NaHCO3 is commonly called as
Baking soda
heating a mixture of sodium benzoate and soda lime gives
Benzene
Types of coal
Peat, lignite, anthracite, bituminous coal
Products of coal
Coal gas
Coal tar
Coke
Series starting from 57La, 42 Hf-80Hg is in the period
6th
Alkyl halides are considered to be very reactive compounds towards nucleophile
because they have an electrophilic carbon & a good leaving group
Which is the longest period of the periodic table
6th
the number of moles of solute dissolved in 1 dm3 of the solution is called
Molarity
primary alcohols and aldehydes are oxidized to form
Carboxylic acid
When white phosphorus reacts with caustic soda it yields
phosphine
What is amphoteric
Which reacts with both acids and bases
Amphoteric compounds
BeO, Al2O3,H2O
Nacl have boiling point due to
Ionic bond
To low nacl boiling point we add
CaCl2
