Chemistry-
General
Easy

Question

A mixture of benzene and toluene can be separated by

  1. Crystallisation    
  2. Solubility    
  3. Separating funnel    
  4. Distillation    

The correct answer is: Distillation

Related Questions to study

General
Maths-

The solution set of the inequality log1/5 (2x + 5) + log5 (16 x 2) 1 is

The solution set of the inequality log1/5 (2x + 5) + log5 (16 x 2) 1 is

Maths-General
General
Maths-

Let f be an injective map with domainblank left curly bracket x comma y comma z right curly bracket and rangeblank left curly bracket 1 , 2 comma 3 right curly bracket such that exactly one of the following statements is correct and the remaining are falseblank f left parenthesis x right parenthesis equals 1 comma f left parenthesis y right parenthesis not equal to 1 comma f left parenthesis z right parenthesis not equal to 2 The value ofblank f to the power of negative 1 end exponent left parenthesis 1 right parenthesis blankis

For such questions, we should know concept of injective function.

Let f be an injective map with domainblank left curly bracket x comma y comma z right curly bracket and rangeblank left curly bracket 1 , 2 comma 3 right curly bracket such that exactly one of the following statements is correct and the remaining are falseblank f left parenthesis x right parenthesis equals 1 comma f left parenthesis y right parenthesis not equal to 1 comma f left parenthesis z right parenthesis not equal to 2 The value ofblank f to the power of negative 1 end exponent left parenthesis 1 right parenthesis blankis

Maths-General

For such questions, we should know concept of injective function.

General
Chemistry-

Hyper conjugation effect is not possible in which of the following species

Hyper conjugation effect is not possible in which of the following species

Chemistry-General
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General
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The graph (y x) againstblank left parenthesis y plus x comma y minus x right parenthesis is as shown. Which one of the following shows the graph of y against ?

The graph (y x) againstblank left parenthesis y plus x comma y minus x right parenthesis is as shown. Which one of the following shows the graph of y against ?

Maths-General
General
Maths-

For each x in [0, 1] define f(x) =blank open curly brackets table row cell 2 x end cell cell comma text  if  end text 0 less or equal than x less or equal than fraction numerator 1 over denominator 2 end fraction end cell row cell 2 minus 2 x end cell cell comma text  if  end text fraction numerator 1 over denominator 2 end fraction less than x less or equal than 1 end cell end table close Let f((b) (x)=f(f(x)), f(n+(a) (x) = f(n)(f(x)) for each integer n 2. For how many values of x is [0, 1] is f(2008) (x) = 1/2?

For each x in [0, 1] define f(x) =blank open curly brackets table row cell 2 x end cell cell comma text  if  end text 0 less or equal than x less or equal than fraction numerator 1 over denominator 2 end fraction end cell row cell 2 minus 2 x end cell cell comma text  if  end text fraction numerator 1 over denominator 2 end fraction less than x less or equal than 1 end cell end table close Let f((b) (x)=f(f(x)), f(n+(a) (x) = f(n)(f(x)) for each integer n 2. For how many values of x is [0, 1] is f(2008) (x) = 1/2?

Maths-General
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Maths-

Ifblank alpha text end textandtext end text beta are the roots of the equationblank a x to the power of 2 end exponent plus b x plus c equals 0 then the quadratic equation whose roots areblank fraction numerator alpha over denominator 1 plus alpha end fraction text  and  end text fraction numerator beta over denominator 1 plus beta end fraction text  is end text

Ifblank alpha text end textandtext end text beta are the roots of the equationblank a x to the power of 2 end exponent plus b x plus c equals 0 then the quadratic equation whose roots areblank fraction numerator alpha over denominator 1 plus alpha end fraction text  and  end text fraction numerator beta over denominator 1 plus beta end fraction text  is end text

Maths-General
parallel
General
Maths-

The probability of getting at least 2 heads, when an unbiased coin is
tossed 6 times is

The probability of getting at least 2 heads, when an unbiased coin is
tossed 6 times is

Maths-General
General
Maths-

not stretchy integral subscript blank superscript blank fraction numerator 2 x plus blank s i n blank 2 x over denominator 1 plus blank c o s blank 2 x end fraction d x equals

not stretchy integral subscript blank superscript blank fraction numerator 2 x plus blank s i n blank 2 x over denominator 1 plus blank c o s blank 2 x end fraction d x equals

Maths-General
General
Maths-

not stretchy integral subscript blank superscript blank e to the power of x end exponent fraction numerator left parenthesis 1 minus x right parenthesis to the power of 2 end exponent over denominator left parenthesis 1 plus x to the power of 2 end exponent right parenthesis to the power of 2 end exponent end fraction d x equals

not stretchy integral subscript blank superscript blank e to the power of x end exponent fraction numerator left parenthesis 1 minus x right parenthesis to the power of 2 end exponent over denominator left parenthesis 1 plus x to the power of 2 end exponent right parenthesis to the power of 2 end exponent end fraction d x equals

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General
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Most stable carbocation is

Most stable carbocation is

Chemistry-General
General
Chemistry-

Inductive effect involves

Inductive effect involves

Chemistry-General
General
Maths-

not stretchy integral subscript blank superscript blank x C a n to the power of negative 1 end exponent x d x equals

not stretchy integral subscript blank superscript blank x C a n to the power of negative 1 end exponent x d x equals

Maths-General
parallel
General
Maths-

If the roots of the equationblank x to the power of 2 end exponent minus 2 a x plus a to the power of 2 end exponent plus a minus 3 equals 0 are less than 3, then

If the roots of the equationblank x to the power of 2 end exponent minus 2 a x plus a to the power of 2 end exponent plus a minus 3 equals 0 are less than 3, then

Maths-General
General
Maths-

If x to the power of 2 end exponent minus 4 x plus l o g subscript 1 divided by 2 end subscript invisible function application a equals 0 text end textdoes not have two distinct real roots, then maximum value of a is

If x to the power of 2 end exponent minus 4 x plus l o g subscript 1 divided by 2 end subscript invisible function application a equals 0 text end textdoes not have two distinct real roots, then maximum value of a is

Maths-General
General
Maths-

If A={1, 2, 3, 4}, then which of the following are functions from A to itself?

If A={1, 2, 3, 4}, then which of the following are functions from A to itself?

Maths-General
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