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When ethyl alcohol (C2H5OH) is mixed with ammonia and passed over heated alumina, the compound formed is (a) C2H5NH2 (b) C2H4 (c) C2H5OC2H5 (d) CH3OCH3
10
Feb
When ethyl alcohol (C2H5OH) is mixed with ammonia and passed over heated alumina, the compound formed is (a) C2H5NH2 (b) C2H4 (c) C2H5OC2H5 (d) CH3OCH3 the compound formed is (a) C2H5NH2 (b) C2H4 (c) C2H5OC2H5 (d) CH3OCH3 When ethyl alcohol (C2H5OH) is mixed with ammonia and passed over heated alumina February 10, 2021 Category: Uncategorised [...]
Under what conditions will a pure smaple of an ideal gas not only exhibit a pressure of 1 atm but also a concentration of 1 mole /litre (R= 0.082 L atm /mol /deg)
10
Feb
Under what conditions will a pure smaple of an ideal gas not only exhibit a pressure of 1 atm but also a concentration of 1 mole /litre (R= 0.082 L atm /mol /deg) Under what conditions will a pure smaple of an ideal gas not only exhibit a pressure of 1 atm but also a [...]
When phenol is heated with phthalic anhydride in concentrated sulphuric acid and the hot reaction mixture is poured into a dilute solution of sodium hydroxide , the product formed is
10
Feb
When phenol is heated with phthalic anhydride in concentrated sulphuric acid and the hot reaction mixture is poured into a dilute solution of sodium hydroxide , the product formed is the product formed is When phenol is heated with phthalic anhydride in concentrated sulphuric acid and the hot reaction mixture is poured into a dilute [...]
The compound A on treatment with Na give B, and with PCl5 gives C. B and C react together to give diethyl ether. A, B and C are in the order
10
Feb
The compound A on treatment with Na give B, and with PCl5 gives C. B and C react together to give diethyl ether. A, B and C are in the order and with PCl5 gives C. B and C react together to give diethyl ether. A B and C are in the order The compound [...]
The density of a gas at 27 degree C at 1 atm is d . pressure remaininng constant at which of the following temperatures will its density become 0.75 d
10
Feb
The density of a gas at 27 degree C at 1 atm is d . pressure remaininng constant at which of the following temperatures will its density become 0.75 d The density of a gas at 27 degree C at 1 atm is d . pressure remaininng constant at which of the following temperatures will [...]
The vapour density of gas is 11.2 . THe volume occupied by 11.2 g of this gas at N.T.P. is (a) 1 L (b) 11.2 L (c0 22.4 L (d) 20 L
10
Feb
The vapour density of gas is 11.2 . THe volume occupied by 11.2 g of this gas at N.T.P. is (a) 1 L (b) 11.2 L (c0 22.4 L (d) 20 L The vapour density of gas is 11.2 . THe volume occupied by 11.2 g of this gas at N.T.P. is (a) 1 L [...]
The diameter and height of a cylinder are measured by a meter scale to be 12.6 + 0.1 cm and 34.2 + 0.1 cm, respectively. What will be the value of its volume in appropriate significant figures?
10
Feb
The diameter and height of a cylinder are measured by a meter scale to be 12.6 + 0.1 cm and 34.2 + 0.1 cm, respectively. What will be the value of its volume in appropriate significant figures? respectively. What will be the value of its volume in appropriate significant figures? The diameter and height of [...]
One litre of gas weighs 2g at 300 k and 1 atm pressusre. If the pressure is made 0.75 atm, at which of the following temperatures will one litre of the same gas weigh one gram
10
Feb
One litre of gas weighs 2g at 300 k and 1 atm pressusre. If the pressure is made 0.75 atm, at which of the following temperatures will one litre of the same gas weigh one gram at which of the following temperatures will one litre of the same gas weigh one gram One litre of [...]
In a simple pendulum experiment for determination of acceleration due to gravity (g), time taken for 20 oscillations is measured by using a watch of 1 second least count. The mean value of time taken comes out to be 30s. The length of pendulum is measured by using a meter scale of least count 1mm and the value obtained is 55.0cm. The percentage error in the determination of g is close to :-
10
Feb
In a simple pendulum experiment for determination of acceleration due to gravity (g), time taken for 20 oscillations is measured by using a watch of 1 second least count. The mean value of time taken comes out to be 30s. The length of pendulum is measured by using a meter scale of least count 1mm [...]
Compound A, C8H10O, is found to react with NaOI (produced by reacting Y with NaOH) and yields a yellow precipitate with characteristic smell. A and Y are respectively
10
Feb
Compound A, C8H10O, is found to react with NaOI (produced by reacting Y with NaOH) and yields a yellow precipitate with characteristic smell. A and Y are respectively C8H10O Compound (A) is found to react with NaOI (produced by reacting Y with NaOH) and yields a yellow precipitate with characteristic smell. A and Y are [...]