Description : Surfactants act as a). Wetting agent b). Spreading agent c). Penetrants d). All
Last Answer : d). All
Description : Commonly used wetting agent for herbicide spray in India a). Soap solution b). Teepol c). Uphar d). All of these
Last Answer : d). All of these
Description : Active toxic material present in the formulation is a). Acid equivalent b). Phytochemical c). Active ingredient d). Surfactant
Last Answer : c). Active ingredient
Description : . Through wetting of all foliage is unneces sary with which of the following a).glyphosate b). paraquat c). diquat d). None of these
Last Answer : a).glyphosate
Description : The odd one amongst the following a).Surfactants b). Activators c). Wetting agents d). Phytobland oils
Last Answer : b). Activators
Description : efficacy of an activator adjuvant is a function of a). Adjuvant only b). Herbicide only c). Both a&b d). Antagonism
Last Answer : c). Both a&b
Description : Carboxymethyl cellulose (CMC) is added in detergents to act as a/an (A) Surfactant (B) Builder (C) Optical brightening agent (D) Anti soil redeposition agent
Last Answer : (D) Anti soil redeposition agent
Description : Classical strategy of biological ap proach involves a). Biocontrol agent b). Bioherbicides c). Bio assay d). a & b
Last Answer : a). Biocontrol agent
Description : Humicants acts as an agent to prevent a). Washing off b). Spreading c). Drying d). Incompatibility
Last Answer : c). Drying
Description : The Vant Hoff equation is :
Last Answer : The Vant Hoff equation is : A. `Delta G^(@)=RT log_(e )K_(P)` B. `-Delta G^(@)=RT log_(e )K_(P)` C. `Delta G^(@)=RT^(2)lnK_(P)` D. None
Description : When is the value of Van’t Hoff factor more than 1?
Last Answer : Ans:- Value of vant Hoff factor is more than 1 in case of dissociation of solute in solution.
Description : When is the value of Van’t Hoff factor less than 1?
Last Answer : Ans:- Value of Vant Hoff factor is less than 1 in case of association of solute in solution.
Description : Define Vant Hoff factor.
Last Answer : Ans:-It is the ratio of experimental value of a colligative property to the theoretical value.
Description : he quantitative effect of temperature on chemical equilibrium is given by the (A) Van’t-Hoff equation (B) Le-Chatelier's principle (C) Arrhenius equation (D) None of these
Last Answer : (A) Van’t-Hoff equation
Description : "The rate at which a substance reacts is proportional to its active mass and the rate of a chemical reaction is proportional to the product of active masses of the reacting substances". This is the (A) Lewis- ... (B) Statement of Van't Hoff Equation (C) Le-Chatelier's principle (D) None of these
Last Answer : (D) None of these
Description : What do you mean by surfactant ?
Last Answer : Some special cell walls of the alveolar wall secrete chemicals that are called surfactants.
Description : What is Surfactant ?
Last Answer : Surfactant is a chemical that protects the lung tissue from sticking.
Last Answer : The detergent that converts the coating membrane into alveoli is called surfactant.
Description : Assertion (A): Micelles are formed by surfactant molecules above the critical micellization concentration `(CMC)` . Reason(R): The conductivity of a s
Last Answer : Assertion (A): Micelles are formed by surfactant molecules above the critical micellization concentration ` ... If both Assertion & Reason are False.
Description : Pulmonary surfactant is :-
Last Answer : Pulmonary surfactant is :- A. Amino acid B. Steriod C. Phospholipid D. Glycolipid
Description : Among the following, which surfactant will form micelles in aqueous solution at the lowest molar concentration at ambient conditions?
Last Answer : Among the following, which surfactant will form micelles in aqueous solution at the lowest molar concentration at ambient ... (+)(CH_(3))_(3)Br^(-)`
Description : At CMC, the surfactant molecules :
Last Answer : At CMC, the surfactant molecules : A. Decomposes B. Become completely soluble C. Associate D. Dissociate
Description : Dipalmitoyl lecithin acts as (A) Platelet activating factor (B) Second messenger for hormones (C) Lung surfactant (D) Anti-ketogenic compound
Last Answer : Answer : C
Description : Phospholipid acting as surfactant is (A) Cephalin (B) Phosphatidyl inositol (C) Lecithin (D) Phosphatidyl serine
Description : Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder that cause wheezing due to (a) reduction in the secretion of surfactant by ... of bronchi and bronchioles (d) proliferation of fibrous tissues and damage of the alveolar walls.
Last Answer : (c) inflammation of bronchi and bronchioles
Description : What common product acts as a surfactant, poking holes in cell membranes? a. Alcohol Sanitizer b. Soap c. Phenol d. Betadine
Last Answer : b. Soap
Description : What is a surfactant?
Last Answer : A surfactant is a chemical that reduces the surface tension of pure liquid or a mixture of liquids. 1
Description : How to stop bed wetting ?
Last Answer : Take him to see a doctor then a psychologist. I would recommend a blood test, there is a chance he is consuming alcohol on a regular basis. the only time i have ever wet my bed as a teen was when i was really drunk and had a dream that i was going to the toilet.
Description : Does wearing shorts instead of long pants help prevent wetting the bed?
Last Answer : What wetting your bed got to do with whether you are wearing a pant or a short? Doesn't make any sense. If you have the habit of wetting your bed then wearing a pant or a short won't help you any. Instead meet a doctor
Description : How does viscosity help wetting agents fight fires?
Last Answer : What is the answer ?
Description : Urination - bed wetting?
Last Answer : DefinitionBed wetting (or enuresis) is when children wet the bed more than twice per month after age 5 or 6.Alternative NamesEnuresis - bedwettingConsiderationsChildren develop complete control over their bladder ... were dry for at least 6 months and then started wetting again have secondary enure
Description : Who makes rubber sheets for bed wetting kids?
Last Answer : White bacteria-resistant rubber sheets (36" x 54") may be purchased from Gladys3 Marketing. Email:[email protected]. I have purchased several and am very happy with the product.
Description : Wetting an area down with alchohol before plucking hairs for culture will decrease inaccurate tests. A. True B. False
Last Answer : Ans: A
Description : Smoke point of kerosene expresses its (A) Burning characteristics (B) Luminosity characteristics (C) Aromatic content directly (D) Lamp wick wetting characteristics
Last Answer : (A) Burning characteristics
Description : The change in enthalpy per unit weight of adsorbed gas when adsorbed on gas free or "outgassed" adsorbent to from a definite concentration of adsorbate is called its (A) Integral heat of adsorption (B) Heat of wetting (C) Differential heat of adsorption (D) Heat of normal condensation
Last Answer : (A) Integral heat of adsorption
Description : In case of physical adsorption, the difference between heat of adsorption and heat of normal condensation is (A) Equal to the heat of formation of surface compound (B) Equal to the heat of wetting (C) Zero (D) Called integral heat of adsorption
Last Answer : (B) Equal to the heat of wetting
Description : The change in enthalpy, when a unit quantity of gas is absorbed by relatively large quantity of adsorbent (on which a definite concentration of the adsorbed gas already exists) is termed as the (A) ... (B) Heat of wetting (C) Integral heat of adsorption (D) None of these
Last Answer : (A) Differential heat of adsorption
Description : Removal of dirt/soil by soaps or detergent does not involve the __________ of soil. (A) Emulsification (B) Dispersion (C) Precipitation (D) Wetting
Last Answer : (C) Precipitation
Description : Ore concentration by froth floatation utilises the __________ of oreparticles. (A) Density difference (B) Wetting characteristics (C) Terminal velocities (D) None of these
Last Answer : (B) Wetting characteristics
Description : On wetting, cohesive soils, (A) Loose permeability (B) Gain shear strength (C) Loose elasticity (D) Decrease their shear strength
Last Answer : Option D
Description : Pick up the correct statement from the following: (A) Kaolinite is most stable clay (B) Kaolinite shows a very little sign of swelling on wetting (C) Kaolinite is also called China clay (D) All the above
Last Answer : Answer: Option D
Description : The process of hardening the concrete by keeping its surface moist is known (A) Placing (B) Wetting (C) Curing (D) Compacting
Last Answer : Answer: Option C
Description : Pick up the correct statement from the following: (A) For thin structures subjected to wetting and drying, the water cement ratio should be 0.45 (B) For mass concrete structures subjected to wetting and ... under water, the water-cement ratio by weight should be 0.55 (D) All the above
Description : Consider the following statements: 1. Dry rot in sap wood is caused by fungal attack 2. Brown rot in coniferous woods is a result of fungal attack 3. Alternate wetting and drying of unseasoned timber causes powdery' form of decay in ... ? (a) 1, 2 and 3 b)1 and 2 only c)2 and 3 only d)1 and 3 only
Last Answer : (a) 1, 2 and 3
Description : The process of consolidating concrete mix after placing it in position is termed as. (a) Curing (b) Wetting (c) Compaction (d) All of these
Last Answer : (c) Compaction
Description : In a 100 quadrat study of 1 sqm each Cyperus rotundus was found in 80 quadrats with overall of 5640 individuals. The frequency (%), abun dance and density (m2) would be a). 70.5, 80.0 and 56.4 b). 56.4, 70.5 and 80.0 c). 80.0, 70.5 and 56.4 d). 80.0, 56.4 and 70.5
Last Answer : c). 80.0, 70.5 and 56.4
Description : If Echinochloa falls in frequency class ‘E’, the weed community is said to be a). Contiguous b). Heterogenous c). Homogenous d). Random
Last Answer : c). Homogenous
Description : Out of 50 quadrats studied, if Echinochloa is found in 26 quadrats, its frequency of occurrence would be a). 13% b). 26% c). 52% d). 68%
Last Answer : c). 52%
Description : If weed population is 70/m2 and the crop 140/ m2, weed intensity would be a). 33.3% b). 66.6% c). 50% d). 73.4%
Last Answer : a). 33.3%
Description : If the count of Echinochloa in weedy check is 70 and that in a treatment 25/m2, weed control efficiency will be a). 54.3% b). 64.3% c). 73.4% d). 79.6%
Last Answer : b). 64.3%