One of the following is impermeable to `H_(2)O` normally

One of the following is impermeable to `H_(2)O` normally
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One of the following is impermeable to `H_(2)O` normally A. PCT B. DCT C. Descending limb D. Ascending limb
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A striking feature of living cells is a marked difference between the composition of the cytosol and the extracellular milieu. Which of the following statement(s) concerning the mechanisms of maintenance of these differences is/are true? a. The cell membrane is able to maintain a 10,000 fold gradient between the extracellular concentration of ionized calcium and the intracellular concentration b. The key to these differences is the fact that the plasma membrane is normally impermeable to sodium, potassium and calcium c. The selectivity of biologic membranes is highly consistent and seldom changes d. The selectivity of cell membranes relates only to ions and not organic compounds

Description : A striking feature of living cells is a marked difference between the composition of the cytosol and the extracellular milieu. Which of the following statement(s) concerning the mechanisms of maintenance ... d. The selectivity of cell membranes relates only to ions and not organic compounds

Last Answer : Answer: a The survival of the cell requires that cytosolic composition be maintained within narrow limits, despite the constant influx of nutrients and the simultaneous outflow of waste. A ... be altered drastically as a result of regulatory or signaling processes that occur within the cell

Assertion `:` Products of digestion are absorbed in the small intestine. Reason `:` Large intestine has impermeable wall.

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What is the plural form of impermeable?

Description : What is the plural form of impermeable?

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What is formed when groundwater pool between a permeable layer and impermeable layer?

Description : What is formed when groundwater pool between a permeable layer and impermeable layer?

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What is An impermeable layer underground that holds groundwater?

Description : What is An impermeable layer underground that holds groundwater?

Last Answer : Need answer

If an aquifer is between two layers of impermeable rock layers what is it called?

Description : If an aquifer is between two layers of impermeable rock layers what is it called?

Last Answer : Need answer

Salinization occurs when the irrigation water accumulated in the soil evaporates, leaving behind salts and minerals. What are the effects of salinization on the irrigated land? [CSAT 2011] (a) It greatly increases the crop production (b) It makes some soils impermeable (c) It raises the water table (d) It fills the air spaces in the soil with water

Description : Salinization occurs when the irrigation water accumulated in the soil evaporates, leaving behind salts and minerals. What are the effects of salinization on the irrigated land? [CSAT 2011] (a) It greatly increases ... c) It raises the water table (d) It fills the air spaces in the soil with water

Last Answer : Ans: (b)

The dormancy due to hard seed coat or impermeable seed coats

Description : The dormancy due to hard seed coat or impermeable seed coats

Last Answer : Ans. Scarification

There are a multitude of various dressings available. Which of the following statement(s) is/are true concerning options for surgical dressings? a. Hydrocolloids, such as karaya compounds, offer the primary advantage of increased absorptive ability b. Films, such as Op-site, provide a water impermeable environment to achieve a dry wound c. Impregnates are fine gauze impregnated with a variety of substances such as antibiotics or moisturizing agents that adhere tightly to the wound and do not require a secondary dressing d. Absorptive powders and paste are highly useful in debriding necrotic and fibrous material from wounds and absorbing wound serum

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. In filtration, the use of 'filter aid' helps in (A) Reducing the filtration pressure (B) Accelerating the rate of filtration (C) Deplugging the filter medium (D) Enhancing the cake porosity in case of a dense impermeable cake

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In a normal nephron: a. the descending loop of Henle is impermeable to water b. anti-diuretic hormone (ADH) increases the permeability of collecting ducts to water c. all the filtered glucose is re-absorbed in the proximal tubule d. nearly all the filtered protein is reabsorbed in the proximal convoluted tubule

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Last Answer : nearly all the filtered protein is reabsorbed in the proximal convoluted tubule

True statements about the retinal blood flow include: a. the retina receives 5% of total ocular blood flow b. the retinal blood flow is mainly under the sympathetic control c. the retina blood vessels are impermeable to ascorbate d. the pericytes control the contractile activity of the retinal blood vessels

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Last Answer : the pericytes control the contractile activity of the retinal blood vessels

Cell membranes a. consist almost entirely of protein molecules b. are impermeable to fat-soluble substances c. in some tissues permit the transport of glucose at a greater rate in the presence of insulin d. are freely permeable to electrolytes but not to proteins e. have a stable composition throughout the life of the cell

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The plasma membrane in resting condition is almost impermeable to a. K+ b. Na+ c. Cl d. HCo3

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When a neuron is in resting state i.e., not conducting any impulse, the axonal membrane is (a) comparatively more permeable to Na+ ions and nearly impermeable to K+ ions (b) equally permeable to both Na+ and K+ ions (c) impermeable to both Na+ and K+ ions (d) comparatively more permeable to K+ ions and nearly impermeable to Na+ ions.

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Which one of the following statements in regard to the excretion by the human kidneys is correct? (a) Descending limb of loop of Henle is impermeable to water.(b) Distal convoluted tubule is incapable of reabsorbing HCO3 – . (c) Nearly 99 per cent of the glomerular filtrate is reabsorbed by the renal tubules. (d) Ascending limb of loop of Henle is impermeable to electrolytes.

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Which of the following statements is correct? (a) The descending limb of loop of Henle is impermeable to water. (b) The ascending limb of loop of Henle is permeable to water. (c) The descending limb of loop of Henle is permeable to electrolytes. (d) The ascending limb of loop of Henle is impermeable to water.

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Identify the type of soil on the basis of the given characteristics - 1. They are rich in lime, iron, magnesia and alumina. 2. They are generally clayey, deep and impermeable. 3. They are mainly found in Maharashtra, Madhya Pradesh and Gujarat. Select the correct answer from the given alternatives - a. Laterite soil b. Red and yellow soil c. Saline soil d. Black soil

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The produce impermeable concrete (A) Thorough mixing of concrete is required (B) Proper compaction of concrete is required (C) Proper curing of concrete is required (D) All the above

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plough is used to break through and shatter compacted or otherwise impermeable soil layers. A. Disc plough C. Chisel plough B. Sub-soil plough D. None of the above

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Which of the following statements is correct ? (1) The descending limb of loop of Henle is impermeable to water. (2) The ascending limb of loop of Henle is permeable to water. (3) The descending limb of loop of Henle is permeable to electrolytes. (4) The ascending limb of loop of Henle is impermeable to water.

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Last Answer : (4) The ascending limb of loop of Henle is impermeable to water.

Consider the following set of reactions : `CHCl_(2)COOH+NaOHrarrCHCl_(2)COONa+H_(2)O " " Delta H_(1) = - 12830` Cal. `HCl + NaOH rarr NaCl + H_(2)O "

Description : Consider the following set of reactions : `CHCl_(2)COOH+NaOHrarrCHCl_(2)COONa+H_(2)O " " Delta H_(1) = - 12830` Cal. `HCl + NaOH rarr NaCl + H_(2)O "

Last Answer : Consider the following set of reactions : `CHCl_(2)COOH+NaOHrarrCHCl_(2)COONa+H_(2)O " " Delta H_(1) = - 12830 ... H^(+) + OH^(-)` is `-13680`Cal.

For the process : `H_(2)O (l, 1 atm, 373 K) rArr H_(2)O(g, 1 atm, 373 K)` [Given normal boiling point of water `= 373` K at 1 atm pressure.] The corre

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In the redox reaction . `MnO_(4)^(-)+C^(2)O_(4)^(2-)+H^(+) rarr Mn^(2+)+CO_(2)+H_(2)O` (Unbalance equation) 20 mL of 0.1 M `KMnO_(4)` react quantitive

Description : In the redox reaction . `MnO_(4)^(-)+C^(2)O_(4)^(2-)+H^(+) rarr Mn^(2+)+CO_(2)+H_(2)O` (Unbalance equation) 20 mL of 0.1 M `KMnO_(4)` react quantitive

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A six co-ordinate complex has the formula `CoCl_(3).5NH_(3).H_(2)O`. Electrical coductance measurements indicate the presence of three ions in one for

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Assertion :- At constant temp `0^(@)C` and 1 atm, the change `H_(2)O(s)rarr H_(2)O(l)Delta H` and `Delta E` both are zero. Reason :- During isothermal

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Assertion :- At constant pressure for the change `H_(2)O(s)rarr H_(2)O(g)` work done is nwgative. Reason :- During phase transition work done is alway

Description : Assertion :- At constant pressure for the change `H_(2)O(s)rarr H_(2)O(g)` work done is nwgative. Reason :- During phase transition work done is alway

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Given `C(s)+O_(2)(g)rarr CO_(2)(g)+94.2` Kcal `H_(2)(g)+2O_(2)(g)rarr CO_(2)(g)+2H_(2)O(l)+210.8` Kcal The heat of formation of methane in Kcal will b

Description : Given `C(s)+O_(2)(g)rarr CO_(2)(g)+94.2` Kcal `H_(2)(g)+2O_(2)(g)rarr CO_(2)(g)+2H_(2)O(l)+210.8` Kcal The heat of formation of methane in Kcal will b

Last Answer : Given `C(s)+O_(2)(g)rarr CO_(2)(g)+94.2` Kcal `H_(2)(g)+2O_(2)(g)rarr CO_(2)(g)+2H_(2)O(l)+210.8` Kcal ... `-45.9` B. `-47.8` C. `-20.0` D. `-47.3`

Using the following thermochemical data. `C(S)+O_(2)(g)rarr CO_(2)(g), Delta H=94.0` Kcal `H_(2)(g)+1//2O_(2)(g)rarr H_(2)O(l), Delta H=-68.0` Kcal `C

Description : Using the following thermochemical data. `C(S)+O_(2)(g)rarr CO_(2)(g), Delta H=94.0` Kcal `H_(2)(g)+1//2O_(2)(g)rarr H_(2)O(l), Delta H=-68.0` Kcal `C

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Given that - `2C(s)+2O_(2)(g)rarr 2CO_(2)(g) Delta H = -787 KJ` `H_(2)(g)+ 1//2O_(2)(g)rarr H_(2)O(l) Delta =-286 KJ` `C_(2)H_(2)(g)+(5)/(2)O_(2)(g)ra

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The enthalpy changes at 298 K in successive breaking of `O-H` bonds of water, are `H_(2)O(g) rarr H(g)+OH(g),DeltaH=498kJ mol^(-1)` `OH(g) rarr H(g)+O

Description : The enthalpy changes at 298 K in successive breaking of `O-H` bonds of water, are `H_(2)O(g) rarr H(g)+OH(g),DeltaH=498kJ mol^(-1)` `OH(g) rarr H(g)+O

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The change in the enthalpy of `NaOH+HCl rarr NaCl+H_(2)O` is called :

Description : The change in the enthalpy of `NaOH+HCl rarr NaCl+H_(2)O` is called :

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If `H^(+)+OH^(-)rarrH_(2)O+13.7Kcal` , the heat of neutralisation for complete neutralisation of 1 mole of `H_(2)SO_(4)` by base will be

Description : If `H^(+)+OH^(-)rarrH_(2)O+13.7Kcal` , the heat of neutralisation for complete neutralisation of 1 mole of `H_(2)SO_(4)` by base will be

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Which of the following is true fo the reacion `H_(2)O(l)hArr H_(2)O(g)` at `100^(@)C` and 1 atmosphere

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Last Answer : Which of the following is true fo the reacion `H_(2)O(l)hArr H_(2)O(g)` at `100^(@)C` and 1 atmosphere ... Delta H = Delta E` D. `Delta H = T Delta S`

The value of enthalpy change `(DeltaH)` for the reaction `C_(2)H_(5)OH (l)+3O_(2) (g) rarr 2CO_(2) (g) +3H_(2)O (l)` at `27^(@)C` is `-1366.5 kJ mol^(

Description : The value of enthalpy change `(DeltaH)` for the reaction `C_(2)H_(5)OH (l)+3O_(2) (g) rarr 2CO_(2) (g) +3H_(2)O (l)` at `27^(@)C` is `-1366.5 kJ mol^(

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For the process `H_(2)O(l) (1 "bar", 373 K) rarr H_(2)O(g) (1"bar", 373 K)` the correct set of thermodynamic parameters is

Description : For the process `H_(2)O(l) (1 "bar", 373 K) rarr H_(2)O(g) (1"bar", 373 K)` the correct set of thermodynamic parameters is

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For a phase change: `H_(2)O(l)hArrH_(2)O(s)` `0^(@)C`, 1 bar

Description : For a phase change: `H_(2)O(l)hArrH_(2)O(s)` `0^(@)C`, 1 bar

Last Answer : For a phase change: `H_(2)O(l)hArrH_(2)O(s)` `0^(@)C`, 1 bar A. `Delta G = 0` B. `Delta S = 0` C. `Delta H = 0` D. `Delta U = 0`

The absolute enthalpy of neutralization of the reaction, `MgO(s)+2HCl(aq.)+H_(2)O(l)` will be

Description : The absolute enthalpy of neutralization of the reaction, `MgO(s)+2HCl(aq.)+H_(2)O(l)` will be

Last Answer : The absolute enthalpy of neutralization of the reaction, `MgO(s)+2HCl(aq.)+H_(2)O(l)` will be A. `57.33" kj ... )` D. Less than `=57.33" kj mol"^(-1)`

Assertion :- Oxidation state of Hydrogen is `+1` in `H_(2)O` while `-1` in `CaH_(2)`. Reason :- `CaH_(2)` is a metal hydride and for metal hydrides, h

Description : Assertion :- Oxidation state of Hydrogen is `+1` in `H_(2)O` while `-1` in `CaH_(2)`. Reason :- `CaH_(2)` is a metal hydride and for metal hydrides, h

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Consider the following reaction : `xMnO_(4)^(-)+yC_(2)O_(4)^(2-)+zH^(+) to xMn^(2+)+2yCO_(2)+(z)/(2)H_(2)O` The value of x, y and z in the reaction ar

Description : Consider the following reaction : `xMnO_(4)^(-)+yC_(2)O_(4)^(2-)+zH^(+) to xMn^(2+)+2yCO_(2)+(z)/(2)H_(2)O` The value of x, y and z in the reaction ar

Last Answer : Consider the following reaction : `xMnO_(4)^(-)+yC_(2)O_(4)^(2-)+zH^(+) to xMn^(2+)+2yCO_(2)+(z)/(2)H_(2) ... 2, 5 and 8 C. 2, 5 and 16 D. 5, 2 and 8

For the redox reation `MnO_(4)^(-)+C_(2)O_(4)^(2-)+H^(+)rarrMn^(2+)CO_(2)+H_(2)O` The correct stoichiometric coefficients of `Mno_(4)^(-),C_(2)O_(4)^(

Description : For the redox reation `MnO_(4)^(-)+C_(2)O_(4)^(2-)+H^(+)rarrMn^(2+)CO_(2)+H_(2)O` The correct stoichiometric coefficients of `Mno_(4)^(-),C_(2)O_(4)^(

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Which is the best description of the behaviour of bromine in the reaction given below `H_(2)O+Br_(2) rarr HOBr+HBr`

Description : Which is the best description of the behaviour of bromine in the reaction given below `H_(2)O+Br_(2) rarr HOBr+HBr`

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Oxidation state of cobalt in `[Co(NH_(3))_(4)(H_(2)O)Cl]SO_(4)` is

Description : Oxidation state of cobalt in `[Co(NH_(3))_(4)(H_(2)O)Cl]SO_(4)` is

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Which one is the oxidising agent in the reaction given below `2CrO_(4)^(2-)+2H^(+)rarrCr_(2)O_(7)^(-2)+H_(2)O`

Description : Which one is the oxidising agent in the reaction given below `2CrO_(4)^(2-)+2H^(+)rarrCr_(2)O_(7)^(-2)+H_(2)O`

Last Answer : Which one is the oxidising agent in the reaction given below `2CrO_(4)^(2-)+2H^(+)rarrCr_(2)O_(7)^(-2)+H_(2)O` ... 2)O_(7)^(-2)` C. `Cr^(++)` D. None

In the balanced equation - `[Zn+H^(+)+NO_(3)^(-)rarr NH_(4)^(-) rarr NH_(4)^(+) +Zn^(+2)+H_(2)O]` coefficient of `NH_(4)^(+)` is :-

Description : In the balanced equation - `[Zn+H^(+)+NO_(3)^(-)rarr NH_(4)^(-) rarr NH_(4)^(+) +Zn^(+2)+H_(2)O]` coefficient of `NH_(4)^(+)` is :-

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What is the value of n in the following equation : `Cr(OH)_(4)^(-)+OH^(-) rarr CrO_(4)^(2-)+H_(2)O+n e`?

Description : What is the value of n in the following equation : `Cr(OH)_(4)^(-)+OH^(-) rarr CrO_(4)^(2-)+H_(2)O+n e`?

Last Answer : What is the value of n in the following equation : `Cr(OH)_(4)^(-)+OH^(-) rarr CrO_(4)^(2-)+H_(2)O+n e`? A. 3 B. 6 C. 5 D. 2