General
Easy
Chemistry-

Scientific aspect of fermentation was first studied by:

Chemistry-General

  1. Liebig
  2. Buchner
  3. Brot
  4. Pasteur

    Answer:The correct answer is: BuchnerBuchner studied fermentation.

    Book A Free Demo

    +91

    Grade*

    Related Questions to study

    General
    physics-

    The convex surface of a thin concav–convex lens of glass of refractive index 1.5 has a radius of curvature of 20 cm The concave surface has a radius of curvature of 60 cm The convex side is silvered and placed on a horizontal surface as shown in the figure A small object is placed on the principal axis of the combination, at a distance of 30 cm in front of the mirror The magnification of the image is

    The convex surface of a thin concav–convex lens of glass of refractive index 1.5 has a radius of curvature of 20 cm The concave surface has a radius of curvature of 60 cm The convex side is silvered and placed on a horizontal surface as shown in the figure A small object is placed on the principal axis of the combination, at a distance of 30 cm in front of the mirror The magnification of the image is

    physics-General
    General
    physics-

    The convex surface of a thin concav–convex lens of glass of refractive index 1.5 has a radius of curvature of 20 cm The concave surface has a radius of curvature of 60 cm The convex side is silvered and placed on a horizontal surface as shown in the figure The combination behaves like

    The convex surface of a thin concav–convex lens of glass of refractive index 1.5 has a radius of curvature of 20 cm The concave surface has a radius of curvature of 60 cm The convex side is silvered and placed on a horizontal surface as shown in the figure The combination behaves like

    physics-General
    General
    physics-

    The convex surface of a thin concav–convex lens of glass of refractive index 1.5 has a radius of curvature of 20 cm The concave surface has a radius of curvature of 60 cm The convex side is silvered and placed on a horizontal surface as shown in the figure The focal length of the combination has the magnitude

    The convex surface of a thin concav–convex lens of glass of refractive index 1.5 has a radius of curvature of 20 cm The concave surface has a radius of curvature of 60 cm The convex side is silvered and placed on a horizontal surface as shown in the figure The focal length of the combination has the magnitude

    physics-General
    General
    physics-

    A point object O is placed at a distance of 0.3 m from a convex lens of focal length 0.2m It is then cut into two halves each of which is displaced by 0.0005 m as shown in figure

    Separation between the images is

    A point object O is placed at a distance of 0.3 m from a convex lens of focal length 0.2m It is then cut into two halves each of which is displaced by 0.0005 m as shown in figure

    Separation between the images is

    physics-General
    General
    physics-

    A point object O is placed at a distance of 0.3 m from a convex lens of focal length 0.2m It is then cut into two halves each of which is displaced by 0.0005 m as shown in figure

    Number of images found is

    A point object O is placed at a distance of 0.3 m from a convex lens of focal length 0.2m It is then cut into two halves each of which is displaced by 0.0005 m as shown in figure

    Number of images found is

    physics-General
    General
    physics-

    A point object O is placed at a distance of 0.3 m from a convex lens of focal length 0.2m It is then cut into two halves each of which is displaced by 0.0005 m as shown in figure

    Image will be formed from the lens at a distance of

    A point object O is placed at a distance of 0.3 m from a convex lens of focal length 0.2m It is then cut into two halves each of which is displaced by 0.0005 m as shown in figure

    Image will be formed from the lens at a distance of

    physics-General
    General
    physics-

    The minimum speed for a particle at the lowest point of a vertical circle of radius r, to describe the circle is v. If the radius of the circle is reduced to one-fourth its value, the corresponding minimum speed will be

    v equals square root of 5 g R end root
    When R to the power of ´ end exponent equals fraction numerator R over denominator 4 end fraction
    v to the power of ´ end exponent equals square root of 5 g R ´ end root equals square root of 5 g R divided by 4 end root equals fraction numerator 1 over denominator 2 end fraction square root of 5 g R end root equals fraction numerator 1 over denominator 2 end fraction v

    The minimum speed for a particle at the lowest point of a vertical circle of radius r, to describe the circle is v. If the radius of the circle is reduced to one-fourth its value, the corresponding minimum speed will be

    physics-General
    v equals square root of 5 g R end root
    When R to the power of ´ end exponent equals fraction numerator R over denominator 4 end fraction
    v to the power of ´ end exponent equals square root of 5 g R ´ end root equals square root of 5 g R divided by 4 end root equals fraction numerator 1 over denominator 2 end fraction square root of 5 g R end root equals fraction numerator 1 over denominator 2 end fraction v
    General
    chemistry-

    Ethanol reacts with thionyl chloride to give ethyl chloride and:

    C subscript 2 H subscript 5 O H plus S O C l subscript 2 ⟶ C subscript 2 H subscript 5 C l plus S O subscript 2 plus H C l

    Ethanol reacts with thionyl chloride to give ethyl chloride and:

    chemistry-General
    C subscript 2 H subscript 5 O H plus S O C l subscript 2 ⟶ C subscript 2 H subscript 5 C l plus S O subscript 2 plus H C l
    General
    physics-

    The fig shows a mixture of blue, green, red colours incident on a right angled prism The critical angles of the material of prism for red, green and blue colours are 460 , 440 , 430 respectively, The arrangement will separate

    The fig shows a mixture of blue, green, red colours incident on a right angled prism The critical angles of the material of prism for red, green and blue colours are 460 , 440 , 430 respectively, The arrangement will separate

    physics-General
    General
    physics-

    An air bubble in glass (m =1.5) is situated at a distance 3 cm from a convex surface of diameter 10 cm as shown The distance from surface at which the image of bubble appears is

    An air bubble in glass (m =1.5) is situated at a distance 3 cm from a convex surface of diameter 10 cm as shown The distance from surface at which the image of bubble appears is

    physics-General
    General
    chemistry-

    On reacting with neutral ferric chloride, phenol gives

    Phenol reacts with neutral F e C l subscript 3 solution to give violet colour complex which is soluble in water.

    On reacting with neutral ferric chloride, phenol gives

    chemistry-General
    Phenol reacts with neutral F e C l subscript 3 solution to give violet colour complex which is soluble in water.
    General
    chemistry-

    The major product obtained on interaction of phenol with sodium hydroxide and carbon dioxide is

    The major product obtained on interaction of phenol with sodium hydroxide and carbon dioxide is

    chemistry-General
    General
    physics-

    The resultant of a system of forces shown in figure is a force of 10 N parallel to given forces through R, where P R equals

    Equating the moments about R
    6 cross times P R equals 4 cross times R Q
    P R equals fraction numerator 4 over denominator 6 end fraction R Q equals fraction numerator 2 over denominator 3 end fraction R Q

    The resultant of a system of forces shown in figure is a force of 10 N parallel to given forces through R, where P R equals

    physics-General
    Equating the moments about R
    6 cross times P R equals 4 cross times R Q
    P R equals fraction numerator 4 over denominator 6 end fraction R Q equals fraction numerator 2 over denominator 3 end fraction R Q
    General
    physics-

    Consider a disc rotating in the horizontal plane with a constant angular speed omega about its centre O. The disc has a shaded region on one side of the diameter and an unshanded region on the other side as shown in the figure. When the disc is in the orientation as shown, two pebbles P and Q are simultaneously projected at an angle towards R. The velocity of projection is in the y minus z plane and is same for both pebbles with respect to the disc. Assume that i) they land back on the disc before the disc has completed fraction numerator 1 over denominator 8 end fraction rotation. ii) their range is less than half the disc radius, and iii) omega remains constant throughout. Then


    To reach the unshaded portion particle P needs to travel horizontal range greater than R sin invisible function application 45 degree or left parenthesis 0.7 blank R right parenthesis but its range is less than fraction numerator R over denominator 2 end fraction. So it will fall on shaded portion
    Q is near to origin, its velocity will be nearly along Q R so its will fall in unshaded portion

    Consider a disc rotating in the horizontal plane with a constant angular speed omega about its centre O. The disc has a shaded region on one side of the diameter and an unshanded region on the other side as shown in the figure. When the disc is in the orientation as shown, two pebbles P and Q are simultaneously projected at an angle towards R. The velocity of projection is in the y minus z plane and is same for both pebbles with respect to the disc. Assume that i) they land back on the disc before the disc has completed fraction numerator 1 over denominator 8 end fraction rotation. ii) their range is less than half the disc radius, and iii) omega remains constant throughout. Then

    physics-General

    To reach the unshaded portion particle P needs to travel horizontal range greater than R sin invisible function application 45 degree or left parenthesis 0.7 blank R right parenthesis but its range is less than fraction numerator R over denominator 2 end fraction. So it will fall on shaded portion
    Q is near to origin, its velocity will be nearly along Q R so its will fall in unshaded portion
    General
    chemistry-

    Which will not form a yellow precipitate on heating with an alkaline solution of iodine?

    Which will not form a yellow precipitate on heating with an alkaline solution of iodine?

    chemistry-General