Assertion :- Catalyst is more effective in powdered form. Reason :- Number of free valencies increase.

Assertion :- Catalyst is more effective in powdered form. Reason :- Number of free valencies increase.
by

1 Answer

Answer :

Assertion :- Catalyst is more effective in powdered form. Reason :- Number of free valencies increase. A ... D. If both Assertion & Reason are False.
by

Related questions

Efficiency of the catalyst depends on its (1) physical state (2) amount used (3) molecular state (4) number of free valencies

Description : Efficiency of the catalyst depends on its (1) physical state (2) amount used (3) molecular state (4) number of free valencies

Last Answer : (3) molecular state

Assertion :- Catalyst change Gibbs free energy of system. Reason :- Catalyst changes preexponential factor of a chemical reaction.

Description : Assertion :- Catalyst change Gibbs free energy of system. Reason :- Catalyst changes preexponential factor of a chemical reaction.

Last Answer : Assertion :- Catalyst change Gibbs free energy of system. Reason :- Catalyst changes preexponential factor ... . If both Assertion & Reason are false.

Assertion: Reaction of `SO_(2)` and `H_(2)S` in the presence of `Fe_(2)O_(3)` catalyst gives elemental sulphur. Reason: `SO_(2)` is a reducing agent.

Description : Assertion: Reaction of `SO_(2)` and `H_(2)S` in the presence of `Fe_(2)O_(3)` catalyst gives elemental sulphur. Reason: `SO_(2)` is a reducing agent.

Last Answer : Assertion: Reaction of `SO_(2)` and `H_(2)S` in the presence of `Fe_(2)O_(3)` catalyst gives ... is False. D. If both Assertion & Reason are False.

Assertion :- Zeolite is shape selective catalyst. Reason :- Size of the pores of the catalyst are such that they can trap only selective molecules.

Description : Assertion :- Zeolite is shape selective catalyst. Reason :- Size of the pores of the catalyst are such that they can trap only selective molecules.

Last Answer : Assertion :- Zeolite is shape selective catalyst. Reason :- Size of the pores of the catalyst are such ... . D. If both Assertion & Reason are False.

Why are powdered substances more effective absorbents than their crystalline forms?

Description : Why are powdered substances more effective absorbents than their crystalline forms?

Last Answer : Ans. Due to increase of surface area of powered substances. 

(a) What are ‘groups’ and ‘periods’ in the ‘periodic table’? (b) Two elements M and N belong to group I and II respectively and are in the same period of the periodic table. How do the following properties of M and N vary? Sizes of their atoms Their metallic characters Their valencies in forming oxides Molecular formulae of their chlorides -Science

Description : (a) What are groups' and periods' in the periodic table'? (b) Two elements M and N belong to group I and II respectively and are in the same period of the periodic ... Sizes of their atoms Their metallic characters Their valencies in forming oxides Molecular formulae of their chlorides -Science

Last Answer : (a) The vertical columns in the periodic table are called groups'. The horizontal rows in the periodic table are called periods'. (b) M' and N' belong to same period but group I ... oxides. Valency goes on increasing first and then decreases. MCI, NCI2 are molecular formulae of their chlorides.

What is valencies of elements?

Description : What is valencies of elements?

Last Answer : The "valency" or valence of an element refers to the number ofoutermost electrons. It is indicative of the combining power ofthat element.

Assertion : Interferons are effective against viruses. Reason : Proteins which can be synthesized only by genetic engineering are effective against vi

Description : Assertion : Interferons are effective against viruses. Reason : Proteins which can be synthesized only by genetic engineering are effective against vi

Last Answer : Assertion : Interferons are effective against viruses. Reason : Proteins which can be synthesized only ... If both the assertion and reason are false

Assertion (A): Teaching aids have to be considered as effective supplements to instruction. Reason (R): They keep the students in good humour. Choose the correct answer from the codes given below : Codes : (A) Both (A) and (R) are true and (R) is the correct explanation of (A). (B) Both (A) and (R) are true, but (R) is not the correct explanation of (A). (C) (A) is true, but (R) is false. (D) (A) is false, but (R) is true.

Description : Assertion (A): Teaching aids have to be considered as effective supplements to instruction. Reason (R): They keep the students in good humour. Choose the correct answer from the codes given below : Codes : (A) Both (A ... ) is true, but (R) is false. (D) (A) is false, but (R) is true.

Last Answer : Answer: B

Assertion (A): For an effective classroom communication at times it is desirable to use the projection technology. Reason (R): Using the projection technology facilitates extensive coverage of course contents. (A) Both (A) and (R) are true, and (R) is the correct explanation. (B) Both (A) and (R) are true, but (R) is not the correct explanation. (C) (A) is true, but (R) is false. (D) (A) is false, but (R) is true.

Description : Assertion (A): For an effective classroom communication at times it is desirable to use the projection technology. Reason (R): Using the projection technology facilitates extensive coverage of course contents. (A) Both (A) and (R) ... ) is true, but (R) is false. (D) (A) is false, but (R) is true.

Last Answer : (B) Both (A) and (R) are true, but (R) is not the correct explanation.

Quick setting cement is produced by adding (A) Less amount of gypsum in very fine powdered form (B) More amount of gypsum in very fine powdered form (C) Aluminium sulphate in very fine powdered form (D) Pozzolana in very fine powdered form

Description : Quick setting cement is produced by adding (A) Less amount of gypsum in very fine powdered form (B) More amount of gypsum in very fine powdered form (C) Aluminium sulphate in very fine powdered form (D) Pozzolana in very fine powdered form

Last Answer : Answer: Option C

Assertion :- During S-phase, amount of DNA per cell boubles. Reason :- During S-phase, there is no increase in cromosome number.

Description : Assertion :- During S-phase, amount of DNA per cell boubles. Reason :- During S-phase, there is no increase in cromosome number.

Last Answer : Assertion :- During S-phase, amount of DNA per cell boubles. Reason :- During S-phase, there is ... False. D. If both Assertion & Reason are false.

Do powdered cold medicines work better than their pill form?

Description : Do powdered cold medicines work better than their pill form?

Last Answer : Gargle with warm water with a pinch of salt added and drink hot tea with lemon and honey for the same effect. Swill mugs of chicken broth. Cheaper and not adulterated with useless cold meds.

Why are they not using bioremediation on the Gulf oil spill ? Evidently these are naturally occuring microbes, available in powdered form, which feed on the oil and digest it into harmless compounds.

Description : Why are they not using bioremediation on the Gulf oil spill ? Evidently these are naturally occuring microbes, available in powdered form, which feed on the oil and digest it into harmless compounds.

Last Answer : answer:I'm not a scientist, but the site you linked does say The microbes are simply mixed with water and sprayed on the oil as it reaches the calmer waters near shore or on shore itself. That could be ... before all the oil gets to the shore and it can get to the water that's under the surface.

If you needed to use powdered copper sulfate in an experiment and were only supplied with clumps of copper sulfate which tool would you need convert the copper sulfate to usable form?

Description : If you needed to use powdered copper sulfate in an experiment and were only supplied with clumps of copper sulfate which tool would you need convert the copper sulfate to usable form?

Last Answer : i don‘t know the answer

Is liquid baby formula that much more expensive than powdered?

Description : Is liquid baby formula that much more expensive than powdered?

Last Answer : Liquid baby formula may be a little more expensive than powdered formula, but liquid is better for the baby. It is more natural and healthier for the baby.

Assertion `:-` An increase in body fluid volume activate osmoreceptors , which stimulate the hypothelamus to release ADH. Reason `:-` ADH facilitates

Description : Assertion `:-` An increase in body fluid volume activate osmoreceptors , which stimulate the hypothelamus to release ADH. Reason `:-` ADH facilitates

Last Answer : Assertion `:-` An increase in body fluid volume activate osmoreceptors , which stimulate the hypothelamus ... . If both Assertion & Reason are false.

Assertion `:-` An increase in glomerular blood pressure can activate the JG of kidney to release renin. Reason `:-` Angiotensin I is a powerful vaso c

Description : Assertion `:-` An increase in glomerular blood pressure can activate the JG of kidney to release renin. Reason `:-` Angiotensin I is a powerful vaso c

Last Answer : Assertion `:-` An increase in glomerular blood pressure can activate the JG of kidney to release renin. ... . D. If both Assertion & Reason are false.

Assertion `:-` An increase in blood flow to the atria of heart can cause the release of ANF. Reason `:-` ANF can cause vasodilation and decrease the B

Description : Assertion `:-` An increase in blood flow to the atria of heart can cause the release of ANF. Reason `:-` ANF can cause vasodilation and decrease the B

Last Answer : Assertion `:-` An increase in blood flow to the atria of heart can cause the release of ANF. ... False. D. If both Assertion & Reason are false.

Assertion `:-` The JGA plays a complex regulaltory role. Reason `:-` An increase in glomerular blood flow `//` GFR can activate JG cells to release re

Description : Assertion `:-` The JGA plays a complex regulaltory role. Reason `:-` An increase in glomerular blood flow `//` GFR can activate JG cells to release re

Last Answer : Assertion `:-` The JGA plays a complex regulaltory role. Reason `:-` An increase in glomerular blood ... . D. If both Assertion & Reason are false.

Assertion `:-` Small intestine is very long and has plica circularis & villi Reason `:` All these increase internal surface area of small intestine fo

Description : Assertion `:-` Small intestine is very long and has plica circularis & villi Reason `:` All these increase internal surface area of small intestine fo

Last Answer : Assertion `:-` Small intestine is very long and has plica circularis & villi Reason `:` All these ... False. D. If both Assertion & Reason are false.

Assertion :- In a mixed population those that can better-adapt, survive and increase in population size. Reason :- Better adaptability made the animal

Description : Assertion :- In a mixed population those that can better-adapt, survive and increase in population size. Reason :- Better adaptability made the animal

Last Answer : Assertion :- In a mixed population those that can better-adapt, survive and increase in population size. ... D. If both Assertion & Reason are false.

Assertion (A) : Presently, the global atmosphere is warming up. Reason (R): The depletion of stratospheric ozone layer has resulted in increase in ult

Description : Assertion (A) : Presently, the global atmosphere is warming up. Reason (R): The depletion of stratospheric ozone layer has resulted in increase in ult

Last Answer : Assertion (A) : Presently, the global atmosphere is warming up. Reason (R): The depletion of ... true but reason is wrong D. Both are wrong

Assertion: The increase in internal energy `(DeltaE)` for the vaporisation of 1 mole of water at 1 atm and `373K` is zero. Reason: For all isothermal

Description : Assertion: The increase in internal energy `(DeltaE)` for the vaporisation of 1 mole of water at 1 atm and `373K` is zero. Reason: For all isothermal

Last Answer : Assertion: The increase in internal energy `(DeltaE)` for the vaporisation of 1 mole of water at 1 ... . D. If both Assertion & Reason are false.

Assertion: Habitat destruction is the main reason of loss of biodiversity. Reason: This actually causes the increase in edge area and reduction in cor

Description : Assertion: Habitat destruction is the main reason of loss of biodiversity. Reason: This actually causes the increase in edge area and reduction in cor

Last Answer : Assertion: Habitat destruction is the main reason of loss of biodiversity. Reason: This actually causes the ... and Reason are false, then mark (4).

Assertion : Oxytocin is also known as anti-diuretic hormone (ADH). Reason : Oxytocin can cause an increase in the renal reabsorbtion of water.

Description : Assertion : Oxytocin is also known as anti-diuretic hormone (ADH). Reason : Oxytocin can cause an increase in the renal reabsorbtion of water.

Last Answer : Assertion : Oxytocin is also known as anti-diuretic hormone (ADH). Reason : Oxytocin can cause an ... . D. If both Assertion and Reason are false.

Assertion: Bond angle at oxygen in ethehers is greater than ideal tetrahedral angle Reason: Stearic hindrance between alkyl groups increase bond angle

Description : Assertion: Bond angle at oxygen in ethehers is greater than ideal tetrahedral angle Reason: Stearic hindrance between alkyl groups increase bond angle

Last Answer : Assertion: Bond angle at oxygen in ethehers is greater than ideal tetrahedral angle Reason: Stearic ... D. Assertion is false, Reason is true

How to reverse the rock salt that has become powdered salt?

Description : How to reverse the rock salt that has become powdered salt?

Last Answer : I would assume you can dissolve it in warm water, put a string in it, and it will crystalize again like sugar does? I’m not sure, we need one of our science Jellies.

What is a good brand of instant powdered espresso with the finest grind ?

Description : What is a good brand of instant powdered espresso with the finest grind ?

Last Answer : It is my understanding that Starbuck’s makes a new ‘instant coffee cup’...you might try that.

burning bush dropping yellow powdered leaves with cob webs.

Description : burning bush dropping yellow powdered leaves with cob webs.

Last Answer : Need Answer

Can we use Arugula flower to flavouring food, such as powdered sugar.h

Description : Can we use Arugula flower to flavouring food, such as powdered sugar.h

Last Answer : Need Answer

What are the benefits of playing powdered milk ?

Description : What are the benefits of playing powdered milk ?

Last Answer : : Powdered milk also contains vitamins which are beneficial for health. However, the quality of real cow's milk is completely different. It is also beneficial to drink powdered milk.

How to fix body health fast ? I am currently 20 years old , height 5 feet 6 inches and I weigh 49 kg and BMI 18.00 . When I was at home, 0.5 liters per day. I used to eat cow's milk but after coming to Dhaka I don't get cow's milk anymore so I don't eat it. Sometimes I drink liquid milk. The mama of the shop says that there are different types of powdered milk kits available. I am getting dry day by day and the taste in my mouth is less Would it be better to buy powdered milk or liquid milk ?? If it is better, tell me which powdered milk to buy. How can I gain 10 kg weight in 3 months ?? Looking for the right advice to fix my health ???

Description : How to fix body health fast ? I am currently 20 years old , height 5 feet 6 inches and I weigh 49 kg and BMI 18.00 . When I was at home, 0.5 liters per day. I used to eat cow's milk but after ... to buy. How can I gain 10 kg weight in 3 months ?? Looking for the right advice to fix my health ???

Last Answer : It is not possible to gain weight fast. It will take some time to get fat or weight. Usually if you are a little fat you will gain weight. So I am not giving any separate tips for weight gain. You ... weight. Food: Drink vegetables , small fish , meat , eggs , milk , banana and water after a while.

Powdered milk liquid what is healthier?

Description : Will I also supplement my calcium by drinking powdered milk?

Last Answer : Yes - calcium (you) does not disappear on drying ... And - "milk is the healthiest".

Are powdered juice drink healthy?

Description : Are powdered juice drink healthy?

Last Answer : Yes and no. The drinking of flavored drinks made from pure water and powered juice ingredients are healthy to an extent, but same time they are not. Flavored drinks are packed with all sort ... . By doing this, you save yourself all the artificial substances that are in powdered flavored juice.

Did Alexander hamilton wear a POWDERED WIG?

Description : Did Alexander hamilton wear a POWDERED WIG?

Last Answer : Need answer

What is the best way to clean my powdered aluminum garden furniture?

Description : What is the best way to clean my powdered aluminum garden furniture?

Last Answer : The best way to clean garden furniture is with a hose and some dish soap. If it needs scrubbed, you can scrub the soap in before spraying it off. This article will give you 5 easy steps to clean your powdered aluminum furniture - http://www.ehow.com/how_4899759_clean-powder-coated-furniture.html

What are the pros and cons of a battery powdered stair lift?

Description : What are the pros and cons of a battery powdered stair lift?

Last Answer : A battery powered stair lift can allow an aged or disabled person to access upper levels they wouldn't otherwise be able to. Unfortunately, the cost of these devices is prohibitive for most. ... that is directly wired. You may experience a fluctioation in power with a battery powered lift.

If a student dissolves powdered sugar in a water in a beaker the student then places a strip of silver in the beaker what is the solute in this solution?

Description : If a student dissolves powdered sugar in a water in a beaker the student then places a strip of silver in the beaker what is the solute in this solution?

Last Answer : Sugar is the solute.

What is a mixture of potassium nitrate powdered charcoal and sulphur called? (1) paint (2) aluminium (3) brass (4) gun powder

Description : What is a mixture of potassium nitrate powdered charcoal and sulphur called? (1) paint (2) aluminium (3) brass (4) gun powder

Last Answer : (4) gun powder Explanation: Gun powder is the mixture of potassium nitrate powdered charcoal and sulphur.

What is a mixture of potassium nitrate powdered charcoal and sulfur called? (1) paint (2) aluminum (3) brass (4) gun powder

Description : What is a mixture of potassium nitrate powdered charcoal and sulfur called? (1) paint (2) aluminum (3) brass (4) gun powder

Last Answer : (4) gun powder Explanation: Gun powder is the mixture of potassium nitrate powdered charcoal and sulfur.

What is a mixture of potassium nitrate, powdered charcoal and sulphur called?

Description : What is a mixture of potassium nitrate, powdered charcoal and sulphur called?

Last Answer : Gun powder

Reciprocating screens are normally inclined at an angle of 5° with the horizontal and employ gyratory motion at feed end & reciprocating motion at the discharge end. They are not suitable for the screening of the (A) Light metal powder down upto 4 mesh size (B) Dry chemicals (C) Heavy tonnages of rocks or gravel (D) Powdered food & granular materials

Description : Reciprocating screens are normally inclined at an angle of 5° with the horizontal and employ gyratory motion at feed end & reciprocating motion at the discharge end. They are not suitable for the ... Dry chemicals (C) Heavy tonnages of rocks or gravel (D) Powdered food & granular materials

Last Answer : (C) Heavy tonnages of rocks or gravel

Iron rust is (A) Ferrous oxide (B) Hydrated ferric oxide (C) Powdered iron (D) Ferric sulphide

Description : Iron rust is (A) Ferrous oxide (B) Hydrated ferric oxide (C) Powdered iron (D) Ferric sulphide

Last Answer : (B) Hydrated ferric oxide

What is a mixture of Potassium Nitrate Powdered Charcoal and Sulphur called? A. Paint B. Glass C. Gun Powder (Answer) D. Cement

Description : What is a mixture of Potassium Nitrate Powdered Charcoal and Sulphur called? A. Paint B. Glass C. Gun Powder (Answer) D. Cement

Last Answer : C. Gun Powder (Answer)

The pH of soil X is 7.5 while that of soil Y is 4.5. Which of the two soils, should be treated with powdered chalk to adjust its pH? (a) X only (b) Y only (c) Both X and Y (d) None of these

Description : The pH of soil X is 7.5 while that of soil Y is 4.5. Which of the two soils, should be treated with powdered chalk to adjust its pH? (a) X only (b) Y only (c) Both X and Y (d) None of these

Last Answer : (b) Y only

Ground glass (A) Is made by grinding its one side (B) Is made by melting powdered glass paints surface (C) Is used for getting light without transparency (D) All the above

Description : Ground glass (A) Is made by grinding its one side (B) Is made by melting powdered glass paints surface (C) Is used for getting light without transparency (D) All the above

Last Answer : Answer: Option D

The material generally not used as extender in paints, is (A) Powdered silica (B) Gypsum (C) Talc (D) Zinc white

Description : The material generally not used as extender in paints, is (A) Powdered silica (B) Gypsum (C) Talc (D) Zinc white

Last Answer : Answer: Option D

Distemper is (A) A paint consisting of powdered chalk, pigments and water (B) A water proofing agent (C) A paint consisting of coloured cement and water (D) A drying agent

Description : Distemper is (A) A paint consisting of powdered chalk, pigments and water (B) A water proofing agent (C) A paint consisting of coloured cement and water (D) A drying agent

Last Answer : Answer: Option A

The cast iron when heated to red heat with powdered red haematite in an oven for increasing its toughness, is converted to (A) Grey cast iron (B) White cast iron (C) Mottled cast iron (D) Toughed cast iron

Description : The cast iron when heated to red heat with powdered red haematite in an oven for increasing its toughness, is converted to (A) Grey cast iron (B) White cast iron (C) Mottled cast iron (D) Toughed cast iron

Last Answer : Answer: Option C