The approximate concentration of H 2 O 2 in -PERHYDROL- isA- 10 grams- litreB- 300 grams- litreC- 300 grams-100 mlD- 30 grams- litre

The correct option is B 300 grams/ litre H_2O_2 in Perhydrol is 30 ...

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Standard VIII

Mathematics

Application of Ratios in Everyday Life

The approxima...

Question

The approximate concentration of $H_{2}$ $O_{2}$ in 'PERHYDROL' is

30 grams/ litre

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300 grams/100 ml

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10 grams/ litre

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300 grams/ litre

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Solution

The correct option is D
300 grams/ litre

$H_{2}$ $O_{2}$ in Perhydrol is 30% = 30 g in 100ml

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Beverages	% of vitamin	% of minerals	% of micronutrients	Cost/250gm (In ₹)
Orange juice	20	10	40	7
Pineapple juice	15	20	10	10
Litchi juice	12	18	30	8

Which of these is the cheapest:

i) 200 grams of Litchi juice + 200 grams of Pineapple juice

ii) 300 grams of Pineapple juice + 100 grams of Litchi juice

iii) 100 grams of Pineapple juice + 100 grams of Litchi juice + 100 grams of Orange juice

iv) 300 grams of Pineapple juice + 100 grams of Orange juice

Q. The approximate mass of

H_{2} O_{2}

present in 200 mL of 100 volume

H_{2} O_{2}

in grams is:

Study the table below and answer the question that follows :

$\begin{matrix} Beverages & % of vitamin & % of minerals & % of micronutrients & Cost/250gm~(In) Orange juice & 20 & 20 & 40 & 8 Pineapple juice & 15 & 20 & 10 & 10 Litchi juice & 12 & 18 & 30 & 8 \end{matrix}$

Which of these is the cheapest:

i) 200 grams of Litchi juice + 200 grams of Pineapple juice

ii) 300 grams of Pineapple juice + 100 grams of Litchi juice

iii) 100 grams of Pineapple juice + 100 grams of Litchi juice + 100 grams of Orange juice

Q. Solubility of common salt in 100 ml water at 20°C is around 36 grams. Then why salt concentration in 1 litre sea water is only 35 grams where the temperature is about 30°C?

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The approximate concentration of H2O2 in 'PERHYDROL' is

The correct option is D 300 grams/ litre H2O2 in Perhydrol is 30% = 30 g in 100ml

The approximate concentration of $H_{2}$ $O_{2}$ in 'PERHYDROL' is

The correct option is D
300 grams/ litre

$H_{2}$ $O_{2}$ in Perhydrol is 30% = 30 g in 100ml