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Chemistry-

General

Easy

Question

The number of $pi$ electrons in anthracene is

6
10
12
14

The correct answers are: 10, 14

Related Questions to study

which of the following explains this structure

which of the following explains this structure

Chemistry-General

Which among the following compounds behave both as an electrophile as well as a nucleophile
a) $C H subscript 2 end subscript equals C H subscript 2 end subscript$
b)
c)
d)

Which among the following compounds behave both as an electrophile as well as a nucleophile
a) $C H subscript 2 end subscript equals C H subscript 2 end subscript$
b)
c)
d)

Chemistry-General

Number of solution of the equation $x to the power of 2 end exponent minus 2 minus 2 left square bracket x right square bracket equals 0$ ([.]denotes the greatest integer function) is

Number of solution of the equation $x to the power of 2 end exponent minus 2 minus 2 left square bracket x right square bracket equals 0$ ([.]denotes the greatest integer function) is

parallel

The domain of f(x) is (0,1) therefore domain $f open parentheses e to the power of x end exponent close parentheses plus f left parenthesis l n invisible function application vertical line x vertical line right parenthesis$ is

The domain of f(x) is (0,1) therefore domain $f open parentheses e to the power of x end exponent close parentheses plus f left parenthesis l n invisible function application vertical line x vertical line right parenthesis$ is

If $left square bracket x right square bracket$ and $left curly bracket x right curly bracket$ represent integral fraction part of x then function defined by $f left parenthesis x right parenthesis equals left square bracket x right square bracket plus stretchy sum from r equals 1 to 1000 of fraction numerator left curly bracket x plus r right curly bracket over denominator 1000 end fraction$ is equal to

If $left square bracket x right square bracket$ and $left curly bracket x right curly bracket$ represent integral fraction part of x then function defined by $f left parenthesis x right parenthesis equals left square bracket x right square bracket plus stretchy sum from r equals 1 to 1000 of fraction numerator left curly bracket x plus r right curly bracket over denominator 1000 end fraction$ is equal to

Which of the following has period 2 $straight pi$

Which of the following has period 2 $straight pi$

parallel

At $90 to the power of ring operator$ C, pure water has $open square brackets straight H subscript 3 straight O to the power of plus close square brackets equals 10 to the power of negative 6 end exponent mol text litre end text to the power of negative 1 end exponent$ . The value of K w at $90 to the power of ring operator$ Cis

At $90 to the power of ring operator$ C, pure water has $open square brackets straight H subscript 3 straight O to the power of plus close square brackets equals 10 to the power of negative 6 end exponent mol text litre end text to the power of negative 1 end exponent$ . The value of K w at $90 to the power of ring operator$ Cis

Chemistry-General

If $f left parenthesis x plus y right parenthesis equals f left parenthesis x right parenthesis plus f left parenthesis y right parenthesis minus x y minus 1$ for all x,y and $f left parenthesis 1 right parenthesis equals 1$ then the number of solution of $f left parenthesis n right parenthesis equals n comma n element of N$ is

If $f left parenthesis x plus y right parenthesis equals f left parenthesis x right parenthesis plus f left parenthesis y right parenthesis minus x y minus 1$ for all x,y and $f left parenthesis 1 right parenthesis equals 1$ then the number of solution of $f left parenthesis n right parenthesis equals n comma n element of N$ is

Let $f left parenthesis x right parenthesis equals 1 plus vertical line x vertical line comma x less than negative 1 equals left square bracket x right square bracket comma x greater or equal than negative 1$ where $left square bracket times right square bracket$ denotes the greatest integer function.Then $f left curly bracket f left parenthesis 2.3 right parenthesis right curly bracket$ is equal to

Let $f left parenthesis x right parenthesis equals 1 plus vertical line x vertical line comma x less than negative 1 equals left square bracket x right square bracket comma x greater or equal than negative 1$ where $left square bracket times right square bracket$ denotes the greatest integer function.Then $f left curly bracket f left parenthesis 2.3 right parenthesis right curly bracket$ is equal to

parallel

If $f colon open 4 , 5 close parentheses rightwards arrow open 0 , 1 close parentheses$ is defined by $f left parenthesis x right parenthesis equals left curly bracket x right curly bracket$ the fractional part of x then $f to the power of negative 1 end exponent left parenthesis x right parenthesis$

If $f colon open 4 , 5 close parentheses rightwards arrow open 0 , 1 close parentheses$ is defined by $f left parenthesis x right parenthesis equals left curly bracket x right curly bracket$ the fractional part of x then $f to the power of negative 1 end exponent left parenthesis x right parenthesis$

The dissociation constant of acetic acid is $1.8 cross times 10 to the power of negative 5 end exponent$ and that of ammonium hydroxide is also 1.8 x 10^-5 at 25°C. Hence, an aqueous solution of ammonium acetate is:

The dissociation constant of acetic acid is $1.8 cross times 10 to the power of negative 5 end exponent$ and that of ammonium hydroxide is also 1.8 x 10^-5 at 25°C. Hence, an aqueous solution of ammonium acetate is:

Chemistry-General

Which one of the following solutions will have the highest pH value?

Which one of the following solutions will have the highest pH value?

Chemistry-General

parallel

Given that the dissociation constant for water is Kw: $1 cross times 10 to the power of negative 14 end exponent m o l to the power of 2 end exponent L to the power of negative 2 end exponent$ . The pH of a 0.001 molar KOH solution is:

Given that the dissociation constant for water is Kw: $1 cross times 10 to the power of negative 14 end exponent m o l to the power of 2 end exponent L to the power of negative 2 end exponent$ . The pH of a 0.001 molar KOH solution is:

Chemistry-General

A diatomic ideal gas is used in a Carnot engine as the working substance. If during the adiabatic expansion part of the cycle the volume of the gas increases from V to 32 V, the efficiency of the engine is

A diatomic ideal gas is used in a Carnot engine as the working substance. If during the adiabatic expansion part of the cycle the volume of the gas increases from V to 32 V, the efficiency of the engine is

Physics-General

A mass of diatomic gas(y=1.4) at a pressure of 2 atmospheres is compressed adiabatically so that its temperature rises from 27C $degree$ to 927 $degree$ C.The pressure of the gas in final state is

A mass of diatomic gas(y=1.4) at a pressure of 2 atmospheres is compressed adiabatically so that its temperature rises from 27C $degree$ to 927 $degree$ C.The pressure of the gas in final state is

Physics-General

parallel

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