Which is`//`are true statements?A. The layer of ice on the surface of river in the winter acts as a thermal insulator between the water below and the air aboveB. The fish and other marine orgnims are enabled to survive long periods of freezing weather due to the fact that ice is lighter than waterC. When ice is formed volume decreasesD. Density of ice is maximum at `0^(@)`C

Which is`//`are true statements?A. The layer of ice on the surface of

1.	Which is`//`are true statements?A. The layer of ice on the surface of river in the winter acts as a thermal insulator between the water below and the air aboveB. The fish and other marine orgnims are enabled to survive long periods of freezing weather due to the fact that ice is lighter than waterC. When ice is formed volume decreasesD. Density of ice is maximum at `0^(@)`C
Answer» Correct Answer - A::B

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Strength of the sample of `H_(2)O_(2)` is generally expressed in terms of volume strength . It means the volume of oxygen liberated at NTP by heating one volume of `H_(2)O_(2)` . The concentration of `H_(2)O_(2)` in a solution can also expressed as percentage of `H_(2)O_(2)` in solution . Normality of this solution can be calculated if the equivalent mass of `H_(2) O_(2)` is known . 25 mL of `H_(2)O_(2)` solution was added to the excess of acidified KI solution . The iodine so liberated required 40 mL of `0.1 N Na_(2)S_(2)O_(3)` solution . what is normality of `H_(2)O_(2)` solution ?A. `0.08`B. `0.02`C. `0.16`D. `0.20`
Strength of the sample of `H_(2)O_(2)` is generally expressed in terms of volume strength . It means the volume of oxygen liberated at NTP by heating one volume of `H_(2)O_(2)` . The concentration of `H_(2)O_(2)` in a solution can also expressed as percentage of `H_(2)O_(2)` in solution . Normality of this solution can be calculated if the equivalent mass of `H_(2) O_(2)` is known . Percentage strength of the above `H_(2)O_(2)` solution isA. `0.126`B. `0.272`C. `0.544`D. `0.136`
Strength of the sample of `H_(2)O_(2)` is generally expressed in terms of volume strength . It means the volume of oxygen liberated at NTP by heating one volume of `H_(2)O_(2)` . The concentration of `H_(2)O_(2)` in a solution can also expressed as percentage of `H_(2)O_(2)` in solution . Normality of this solution can be calculated if the equivalent mass of `H_(2) O_(2)` is known . Volume strength of above `H_(2)O_(2)` solution is ?A. `0.448`B. `0.632`C. `0.896`D. `0.556`
What is the molarity of `H_2O_2` of the `11.2V` (volume strength)?
What is the molarity of `H_(2)O_(2)` of the 11.2 V (volume strength) ?
The volume of perhydrol which on decomposition gives 1.5 Iit of `O_(2)` gas at STP isA. 25mlB. 15mlC. 10mlD. 0ml
Perhydrol isA. `10%(w//v)H_(2)O_(2)`B. `30%(w//v)` of `H_(2)O_(2)`C. `3%(w//v)H_(2)O_(2)`D. `100%(w//v)H_(2)O_(2)`
The volume of perhydrol which on decompostion gives 1L of `O_(@)` at STP isA. 10mLB. 1mLC. 100mLD. 10L
The lead of the lead paintings becomes black due to formation of……… `H_(2)O_(2)` converts the black colour to white lead is…..A. `H_(2)S,PbSO_(4)`B. `PbS,PbSO_(4)`C. `PbSO_(4),PbS`D. `PbS,H_(2)S`
Molarity and volume strength of perhydrol respectivelyA. 100M and 8.9 VB. 8.9 M and 100VC. 8.9M and 30VD. 30M and 8.9 V

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