Chemistry-
General
Easy
Question
In the following first order competing reactions; 
. The ratio of 
if only 50% of B will have been reacted when 94% of A has been reacted is:
- 4.06
- 3.06
- 2.06
- 0.06
The correct answer is: 4.06
Related Questions to study
Chemistry-
For an endothermic reaction, where Mf represents the enthilJpy of the reaction in kJ/mol, the minimum value for the energy of activation will be:
For an endothermic reaction, where Mf represents the enthilJpy of the reaction in kJ/mol, the minimum value for the energy of activation will be:
Chemistry-General
Chemistry-
The hydrolysis of an ester was carried out separately with 0.05 NHCl and 0.05 NH2S04. Which of the following will be true?
The hydrolysis of an ester was carried out separately with 0.05 NHCl and 0.05 NH2S04. Which of the following will be true?
Chemistry-General
Chemistry-
From the following data, the activation energy for the reaction (cal/mol) is:
<img src="https://mycourses.turito.com/tokenpluginfile.php/c161933dbfaab094c54655ab71e9b8f0/1/question/questiontext/643590/1/1165511/Picture1.png" alt="" width="244" height="166"
From the following data, the activation energy for the reaction (cal/mol) is:
<img src="https://mycourses.turito.com/tokenpluginfile.php/c161933dbfaab094c54655ab71e9b8f0/1/question/questiontext/643590/1/1165511/Picture1.png" alt="" width="244" height="166"
Chemistry-General
Chemistry-
In gaseous reactions, important for the understanding of the upper atmosphere H20 and 0 react bimolecularly to form two OH radicals. Mf for this reaction is 72 kJ at 500 K and Ea is 77 kJ mol-I; then for the bimolecular recombination of two OH radicals to form H20 and 0 is:
In gaseous reactions, important for the understanding of the upper atmosphere H20 and 0 react bimolecularly to form two OH radicals. Mf for this reaction is 72 kJ at 500 K and Ea is 77 kJ mol-I; then for the bimolecular recombination of two OH radicals to form H20 and 0 is:
Chemistry-General
Chemistry-
(A) The order of a reaction can have fractional value.
(R) The order of a reaction cannot be written from balanced equation of a reaction.
(A) The order of a reaction can have fractional value.
(R) The order of a reaction cannot be written from balanced equation of a reaction.
Chemistry-General
Physics-
In LR circuit (shown in figure), current is lagging by 
in phase with applied voltage, then select correct alternative :
In LR circuit (shown in figure), current is lagging by in phase with applied voltage, then select correct alternative :
Physics-General
Physics-
Ametalrodoflength,movingwithanangularvelocityandvelocityofitscentreisv.Findpotentialdifference betweenpointsAandBattheinstantshowninfigure.AuniformmagneticfieldofstrengthBexistperpendicular
to plane of paper :
Ametalrodoflength,movingwithanangularvelocityandvelocityofitscentreisv.Findpotentialdifference betweenpointsAandBattheinstantshowninfigure.AuniformmagneticfieldofstrengthBexistperpendicular
to plane of paper :
Physics-General
Physics-
Particle sticks to wooden loop, If particle reach at the lowest position for first time after time T. Then displacement of centre of mass of system in this time interval will be :
Particle sticks to wooden loop, If particle reach at the lowest position for first time after time T. Then displacement of centre of mass of system in this time interval will be :
Physics-General
Physics-
One end of a light rod of length 1 m is attached with a string of length 1m. Other end of the rod is attached at point O such that rod can move in a vertical circle. Other end of the string is attached with a block of mass 2kg. The minimum velocity that must be given to the block in horizontal direction so that it can complete the vertical circle is (g = 10 m/s2 )
One end of a light rod of length 1 m is attached with a string of length 1m. Other end of the rod is attached at point O such that rod can move in a vertical circle. Other end of the string is attached with a block of mass 2kg. The minimum velocity that must be given to the block in horizontal direction so that it can complete the vertical circle is (g = 10 m/s2 )
Physics-General
Physics-
Three point masses are attached by light inextensible strings of various lengths to a point O on the ceiling. All of the masses swing round in horizontal circles of various radii with the same angular frequency w (one such circle is drawn in the shown figure.) Then pick up the correct statement.
Three point masses are attached by light inextensible strings of various lengths to a point O on the ceiling. All of the masses swing round in horizontal circles of various radii with the same angular frequency w (one such circle is drawn in the shown figure.) Then pick up the correct statement.
Physics-General
Physics-
Two blocks of mass m1 and m2 (m1 < m2 ) are connected with an ideal spring on a smooth horizontal surface as shown in figure. At t = 0 m1 is at rest and m2 is given a velocity v towards right. At this moment, spring is in its natural length. Then choose the correct alternative :
Two blocks of mass m1 and m2 (m1 < m2 ) are connected with an ideal spring on a smooth horizontal surface as shown in figure. At t = 0 m1 is at rest and m2 is given a velocity v towards right. At this moment, spring is in its natural length. Then choose the correct alternative :
Physics-General
Physics-
A small bead of mass m = 1 kg is free to move on a circular hoop. The circular hoop has centre at C and radius r = 1 m and it rotates about a fixed vertical axis. The coefficient of friction between bead and hoop is µ = 0.5. The maximum angular speed of the hoop for which the bead does not have relative motion with respect to hoop, at the position shown in figure is : (Take g = 10 m/s2)
A small bead of mass m = 1 kg is free to move on a circular hoop. The circular hoop has centre at C and radius r = 1 m and it rotates about a fixed vertical axis. The coefficient of friction between bead and hoop is µ = 0.5. The maximum angular speed of the hoop for which the bead does not have relative motion with respect to hoop, at the position shown in figure is : (Take g = 10 m/s2)
Physics-General
Physics-
A particle is moving along an elliptical path with constant speed. As it moves from A to B, magnitude of its acceleration
A particle is moving along an elliptical path with constant speed. As it moves from A to B, magnitude of its acceleration
Physics-General
Physics-
In the figure shown a semicircular area is removed from a uniform square plate of side ‘ l ’ and mass ‘m’ (before removing). The x-coordinate of centre of mass of remaining portion is (The origin is at the centre of square)
In the figure shown a semicircular area is removed from a uniform square plate of side ‘ l ’ and mass ‘m’ (before removing). The x-coordinate of centre of mass of remaining portion is (The origin is at the centre of square)
Physics-General
Physics-
Consider the system shown in figure. Pulley, string and spring are ideal and Dm << M. Initially spring is in it’s natural length and both the blocks are at rest. (Assume that initially Dm was situated at origin). Maximum y coordinate of Dm in subsequent motion is xmg/k then value of x is
Consider the system shown in figure. Pulley, string and spring are ideal and Dm << M. Initially spring is in it’s natural length and both the blocks are at rest. (Assume that initially Dm was situated at origin). Maximum y coordinate of Dm in subsequent motion is xmg/k then value of x is
Physics-General
