Chemistry-
General
Easy

Question

The missing structures A and B in the reaction sequence:
; A&B are given by the set -

  1. C H subscript 3 end subscript O H comma R C O O H    
  2. Methanal, R C H subscript 2 end subscript O H    
  3. Ethanal, RCOOH    
  4. Methanal, RCHOHR    

The correct answer is: Methanal, R C H subscript 2 end subscript O H

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blank subscript 83 end subscript superscript 214 end superscript B i stack ⟶ with alpha text -emission  end text on top A stack ⟶ with beta text -emission  end text on top B stack ⟶ with beta minus text  cmission  end text on top C stack ⟶ with beta text -emission  end text on top D stack ⟶ with alpha text -emission  end text on top E E' is.an element of stable nucleus What is the element 'E'?

blank subscript 83 end subscript superscript 214 end superscript B i stack ⟶ with alpha text -emission  end text on top A stack ⟶ with beta text -emission  end text on top B stack ⟶ with beta minus text  cmission  end text on top C stack ⟶ with beta text -emission  end text on top D stack ⟶ with alpha text -emission  end text on top E E' is.an element of stable nucleus What is the element 'E'?

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table attributes columnalign right end attributes row cell A stack ⟶ with lambda subscript 1 end subscript on top B lambda subscript 1 end subscript end cell cell blank equals 1.8 cross times 10 to the power of negative 2 end exponent s e c to the power of negative 1 end exponent end cell row cell 2 A stack ⟶ with lambda subscript 2 end subscript on top B lambda subscript 2 end subscript end cell cell blank equals 10 to the power of negative 3 end exponent s e c to the power of negative 1 end exponent end cell end table
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table attributes columnalign right end attributes row cell A stack ⟶ with lambda subscript 1 end subscript on top B lambda subscript 1 end subscript end cell cell blank equals 1.8 cross times 10 to the power of negative 2 end exponent s e c to the power of negative 1 end exponent end cell row cell 2 A stack ⟶ with lambda subscript 2 end subscript on top B lambda subscript 2 end subscript end cell cell blank equals 10 to the power of negative 3 end exponent s e c to the power of negative 1 end exponent end cell end table
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