Find the valency factor for following bases : `(i) Ca(OH)_(2) " " (ii) CsOH " " (iii) Al(OH)_(3)`

Find the valency factor for following bases : `(i) Ca(OH)_(2) " " (ii) CsOH " " (iii) Al(OH)_(3)`
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Find the valency factor for following bases : `(i) Ca(OH)_(2) " " (ii) CsOH " " (iii) Al(OH)_(3)`
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Find the the valency factor for following acids `(i) CH_(3)CO OH " " (ii) NaH_(2)PO_(4) " " (iii) H_(3)BO_(3)`

Description : Find the the valency factor for following acids `(i) CH_(3)CO OH " " (ii) NaH_(2)PO_(4) " " (iii) H_(3)BO_(3)`

Last Answer : Find the the valency factor for following acids `(i) CH_(3)CO OH " " (ii) NaH_(2)PO_(4) " " (iii) H_(3)BO_(3)`

1 mol of `H_(3)PO_(2), H_(3)PO_(3)` and `H_(3)PO_(4)` will neutralise x mol `NaOH`, y mol of `Ca(OH)_(2)` and z mol of `Al(OH)_(3)` respectively (assu

Description : 1 mol of `H_(3)PO_(2), H_(3)PO_(3)` and `H_(3)PO_(4)` will neutralise x mol `NaOH`, y mol of `Ca(OH)_(2)` and z mol of `Al(OH)_(3)` respectively (assu

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Identify the type of reaction(s) in the following equations. (i)CH4 + 2O2 CO2 + 2 H2O (ii) Pb(NO3)2 + 2KI ——–>Pbl2 + 2KNOs (iii) CaO + H2O ——–> Ca(OH)2 (iv) CuSO4 + Zn ——–> ZnSO4 + Cu -Chemistry

Description : Identify the type of reaction(s) in the following equations. (i)CH4 + 2O2 CO2 + 2 H2O (ii) Pb(NO3)2 + 2KI ——–>Pbl2 + 2KNOs (iii) CaO + H2O ——–> Ca(OH)2 (iv) CuSO4 + Zn ——–> ZnSO4 + Cu -Chemistry

Last Answer : Answer. (i) Combustion reaction and oxidation reaction. (ii)Double displacement reaction and precipitation reaction. (iii) Combination reaction. (iv) Displacement reaction.

Which is the decreasing oreder of acidity in the following compounds? `{:(CH_(3)CH_(2)OH"(I) "CF_(3)CH_(2)OH"(II)"),("CCl"_(3)-CH_(2)OH"(III) "(NO_(2)

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What volume of 0.05 M `Ca(OH)_(2)` solution is needed for complete conversion of 10mL of 0.1 M `H_(3)PO_(4)` into `Ca(H_(2)PO_(4))_(2)` ?

Description : What volume of 0.05 M `Ca(OH)_(2)` solution is needed for complete conversion of 10mL of 0.1 M `H_(3)PO_(4)` into `Ca(H_(2)PO_(4))_(2)` ?

Last Answer : What volume of 0.05 M `Ca(OH)_(2)` solution is needed for complete conversion of 10mL of 0.1 M `H_(3)PO_(4)` into `Ca(H_(2)PO_(4))_(2)` ?

The amount of lime, `Ca(OH)_(2)` required to remove the hardness in 60 L of pond water containing 1.62 mg of calcium bicarbonate per 100 ml of water,

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Find the structure of the following atoms: (i) `._(8)^(16)O" "` (ii) `._(17)^(35)Cl" "` (iii) `._(13)^(27)Al`.

Description : Find the structure of the following atoms: (i) `._(8)^(16)O" "` (ii) `._(17)^(35)Cl" "` (iii) `._(13)^(27)Al`.

Last Answer : Find the structure of the following atoms: (i) `._(8)^(16)O" "` (ii) `._(17)^(35)Cl" "` (iii) `._(13)^(27)Al`.

Statement: Nuclide `._(13)^(30)Al` is less stable than `._(20)^(40) Ca` Explanation: Nuclides having odd number of protons and neutrons are general un

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Find the atomic structure of `._(12)^(24)Mg`. What is its valency?

Description : Find the atomic structure of `._(12)^(24)Mg`. What is its valency?

Last Answer : Find the atomic structure of `._(12)^(24)Mg`. What is its valency?

In step-III if `Pb(CH_(3)CO O)_(2)` is added without acidifying the solution with `CH_(3)CO OH` then possibel product may be :

Description : In step-III if `Pb(CH_(3)CO O)_(2)` is added without acidifying the solution with `CH_(3)CO OH` then possibel product may be :

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In \( III ^{ rd } \) group of salt analysis for cations \( NH _{4} Cl \) and \( NH _{4} OH \) are added as group reagents. Which of the following can be used instead of \( NH _{4} Cl \) ?(a) \( NaCl \)(b) \( \left( NH _{4}\right)_{2} SO _{4} \)(c) \( \left( NH _{4}\right)_{2} C _{2} O _{4} \)(d) \( NH _{4} NO _{3} \)

Description : In \( III ^{ rd } \) group of salt analysis for cations \( NH _{4} Cl \) and \( NH _{4} OH \) are added as group reagents. Which of the following can be used instead of \( NH _{4} Cl \) ?(a) \( NaCl \)(b) \( \left( NH _ ... \)(c) \( \left( NH _{4}\right)_{2} C _{2} O _{4} \)(d) \( NH _{4} NO _{3} \)

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The decreasing order of strength of the bases, `OH^(-), NH_(2)^(-), H-C-=C^(-)` and `CH_(3)-CH_(2)^(-)`:

Description : The decreasing order of strength of the bases, `OH^(-), NH_(2)^(-), H-C-=C^(-)` and `CH_(3)-CH_(2)^(-)`:

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Condiser the reactions, (i) `(CH_(3))_(2)CH-CH_(2)Broverset(C_(2)H_(5)OH)rarr(CH_(3))_(2)CH-CH_(2)OC_(2)H_(5)+HBr` (ii) `(CH_(3))_(2)CH-CH_(2)Broverse

Description : Condiser the reactions, (i) `(CH_(3))_(2)CH-CH_(2)Broverset(C_(2)H_(5)OH)rarr(CH_(3))_(2)CH-CH_(2)OC_(2)H_(5)+HBr` (ii) `(CH_(3))_(2)CH-CH_(2)Broverse

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Define: i) Valency ii) Valence electrons.

Description : Define: i) Valency ii) Valence electrons. 

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Complete the following nuclear reactions: (i) `._(7_^(14)N + ._(2)^(4)He rarr ._(8)O + ._(1)^(1)H` (ii) `.^(24)Mg + ._(2)^(4)He rarr ._(13)^(27)Al +`

Description : Complete the following nuclear reactions: (i) `._(7_^(14)N + ._(2)^(4)He rarr ._(8)O + ._(1)^(1)H` (ii) `.^(24)Mg + ._(2)^(4)He rarr ._(13)^(27)Al +`

Last Answer : Complete the following nuclear reactions: (i) `._(7_^(14)N + ._(2)^(4)He rarr ._(8)O + ._(1)^(1)H` (ii) `. ... )Li + .^(3)n rarr .^(4)He + ._(1)^(3)H`

Arrange the compounds in order of decreasing acidic strength : (I) `ClCH_(2)-CH_(2)-OH` (II) `Cl_(2)CH-CH_(2)-OH` (III) `Cl-CH_(2)-CH_(2)-CH_(2)-OH` (

Description : Arrange the compounds in order of decreasing acidic strength : (I) `ClCH_(2)-CH_(2)-OH` (II) `Cl_(2)CH-CH_(2)-OH` (III) `Cl-CH_(2)-CH_(2)-CH_(2)-OH` (

Last Answer : Arrange the compounds in order of decreasing acidic strength : (I) `ClCH_(2)-CH_(2)-OH` (II) `Cl_(2)CH-CH_(2 ... IV gt III` D. `II gt I gt III gt IV`

Arrange the following acid in decreasing order of their acidic strength : (I) `CH_(3)-OH` (II) `CH_(3)CH_(2)-OH` (III) `CH_(3)-underset(CH_(3))underse

Description : Arrange the following acid in decreasing order of their acidic strength : (I) `CH_(3)-OH` (II) `CH_(3)CH_(2)-OH` (III) `CH_(3)-underset(CH_(3))underse

Last Answer : Arrange the following acid in decreasing order of their acidic strength : (I) `CH_(3)-OH` (II) `CH_(3)CH_(2)- ... II gt IV` D. `II gt IV gt III gt I`

Among the following anions, the order of basicity is : `overset(-)(C )H_(3)(I), overset(-)(N)H_(2)(II), OH^(-)(III),F^(-)(IV)`

Description : Among the following anions, the order of basicity is : `overset(-)(C )H_(3)(I), overset(-)(N)H_(2)(II), OH^(-)(III),F^(-)(IV)`

Last Answer : Among the following anions, the order of basicity is : `overset(-)(C )H_(3)(I), overset(-)(N)H_(2)(II), OH^(- ... > II > I > IV D. III > I > II > IV

How atoms does Al(OH)3?

Description : How atoms does Al(OH)3?

Last Answer : What is the answer ?

How many atoms in Al(OH)3?

Description : How many atoms in Al(OH)3?

Last Answer : What is the answer ?

How many moles are in 98.3 grams of aluminum hydroxide Al(OH)3?

Description : How many moles are in 98.3 grams of aluminum hydroxide Al(OH)3?

Last Answer : Need answer

Al 2 O 3 + 2NaOH → ...... + H 2 O A) Al (OH) 3 B) Na 2 O C) NaAlO 2 D) AlNaO 2

Description : Al 2 O 3 + 2NaOH → ...... + H 2 O A) Al (OH) 3 B) Na 2 O C) NaAlO 2 D) AlNaO 2

Last Answer : B) Na

What is (CO2)+[Ca(OH)2] -Science

Description : What is (CO2)+[Ca(OH)2] -Science

Last Answer : Balance Ca(OH)2+CO2--->CaCO3+H2O The mechanism of reaction of carbon dioxide in aqueous calcium hydroxide is a double displacement reaction. Calcium hydroxide + carbon dioxide → Calcium carbonate + water ... reaction: Both the right (products) and left (reactants) side of the equation are balanced

Which of the following is a base (APEX)HI (hydroiodic acid)Ca(OH)2 (calcium hydroxide)H2CO3 (carbonic acid)HNO3 (nitric acid)?

Description : Which of the following is a base (APEX)HI (hydroiodic acid)Ca(OH)2 (calcium hydroxide)H2CO3 (carbonic acid)HNO3 (nitric acid)?

Last Answer : Ca(OH)2 (calcium hydroxide) (Apex)

Is Ca(OH)2 am organic compound?

Description : Is Ca(OH)2 am organic compound?

Last Answer : Nope... it is not.

How many grams of LiOH is formed from 25.0 g of CaOH given the following equation... Ca(OH)2 plus Li2CO3 ----- and gt CaCO3 plus 2Li(OH) What is the answer and how did you get it?

Description : How many grams of LiOH is formed from 25.0 g of CaOH given the following equation... Ca(OH)2 plus Li2CO3 ----- and gt CaCO3 plus 2Li(OH) What is the answer and how did you get it?

Last Answer : The chemical reaction is:Li2CO3 + Ca(OH)2 = 2 LiOH + CaCO3Molar maass of LiOH is 23,95 g; molar mass of calcium hydroxide is 74,093 g.74,093 g Ca(OH)2----------------2.23,95 g LiOH25 g Ca(OH)2----------------------xx = (25 x 2 x 23,95)/74,093 = 16,2 g LiOH

If 85 g of NH4CL reacts with 130 g of Ca(OH)2 what is the maximum mass of ammonia that can be formed?

Description : If 85 g of NH4CL reacts with 130 g of Ca(OH)2 what is the maximum mass of ammonia that can be formed?

Last Answer : 27.59

The active transport of ‘Ca’ is regulated by __________ which is synthesized in kidnyes. (A) Cholecalciferol (B) Ergosterol (C) 25-OH cholecalciferol (D) 1, 25-di OH-Cholecalciferol

Description : The active transport of ‘Ca’ is regulated by __________ which is synthesized in kidnyes. (A) Cholecalciferol (B) Ergosterol (C) 25-OH cholecalciferol (D) 1, 25-di OH-Cholecalciferol

Last Answer : Answer : D

Ions moving towards the cathode during electrolysis of an aqueous solution of Ca(OH)2 are (a) OH (b) H+ (c) Ca2+ (d) 02

Description : Ions moving towards the cathode during electrolysis of an aqueous solution of Ca(OH)2 are (a) OH (b) H+ (c) Ca2+ (d) 02

Last Answer : Ans:(a)

Chemical formula of washing soda is - (1) Na2SO4.10H2O (2) NaHCO3 (3) Na2CO3.10H2O (4) Ca(OH)2

Description : Chemical formula of washing soda is - (1) Na2SO4.10H2O (2) NaHCO3 (3) Na2CO3.10H2O (4) Ca(OH)2

Last Answer : (3) Na2CO3.10H2O Explanation: Washing Soda is essentially Sodium Carbonate, a sodium salt of carbonic acid (soluble in water). The molecular formula of washing soda is Na2CO3.10H2O. It is used as ... It reacts with the calcium and magnesium bonds present in the water, enabling the detergent to work.

CO2 can be absorbed by (A) Hot cupric oxide (B) Heated charcoal (C) Cold Ca(OH)2 (D) Alumina

Description : CO2 can be absorbed by (A) Hot cupric oxide (B) Heated charcoal (C) Cold Ca(OH)2 (D) Alumina

Last Answer : (B) Heated charcoal

Pick out the exothermic reaction out of the following: (A) C + H2O = CO + H2 (B) CaC2 + H2O = Ca(OH)2 + C2H2 (C) MgCO3 = MgO + CO2 (D) All (A), (B) and (C)

Description : Pick out the exothermic reaction out of the following: (A) C + H2O = CO + H2 (B) CaC2 + H2O = Ca(OH)2 + C2H2 (C) MgCO3 = MgO + CO2 (D) All (A), (B) and (C)

Last Answer : (B) CaC2 + H2O = Ca(OH)2 + C2H2

Ca(OH)2 is called (A) Quicklime (B) Slaked lime (C) Limestone (D) Gypsum

Description : Ca(OH)2 is called (A) Quicklime (B) Slaked lime (C) Limestone (D) Gypsum

Last Answer : (B) Slaked lime

Permanent hardness of water can be removed by (A) Boiling (B) Adding Ca(OH)2 (C) Boiling it with Na2CO3 (D) None of these

Description : Permanent hardness of water can be removed by (A) Boiling (B) Adding Ca(OH)2 (C) Boiling it with Na2CO3 (D) None of these

Last Answer : (C) Boiling it with Na2CO3

Formula for quick lime, is (A) CaCO3 (B) Ca(OH)2 (C) CO3CO2 (D) None to thes

Description : Formula for quick lime, is (A) CaCO3 (B) Ca(OH)2 (C) CO3CO2 (D) None to thes

Last Answer : Answer: Option A

.In primary teeth, failure of Ca(OH)2 pulpotomy is MOST likely to produce:** A. External resorption B. Internal resorption C. Necrosis of the pulp D. Ankylosis

Description : .In primary teeth, failure of Ca(OH)2 pulpotomy is MOST likely to produce:** A. External resorption B. Internal resorption C. Necrosis of the pulp D. Ankylosis

Last Answer : B. Internal resorption

Which material is not compatible with composite resin: A. Zinc Oxide eugenol (ZOE) B. Ca(OH)2 C. Carboxylate D. Zinc phosphate cement

Description : Which material is not compatible with composite resin: A. Zinc Oxide eugenol (ZOE) B. Ca(OH)2 C. Carboxylate D. Zinc phosphate cement

Last Answer : A. Zinc Oxide eugenol (ZOE)

A child has sustained a traumatic exposure of primary central incisor, he presents to you for treatment two days after the injury. Which of the following should be considered? A. Pulpotomy and Ca(OH)2 B. Pulpotomy and formocresol C. Direct pulp capping D. Pulpectomy (RCT)

Description : A child has sustained a traumatic exposure of primary central incisor, he presents to you for treatment two days after the injury. Which of the following should be considered? A. Pulpotomy and Ca(OH)2 B. Pulpotomy and formocresol C. Direct pulp capping D. Pulpectomy (RCT)

Last Answer : D. Pulpectomy (RCT)

Write a note on the Physical Properties of Calcium Hydroxide (Slaked lime), Ca(OH)2

Description : Write a note on the Physical Properties of Calcium Hydroxide (Slaked lime), Ca(OH)2

Last Answer : It is a white amorphous powder. It is sparingly soluble in water. The aqueous solution is known as lime water and a suspension of slaked lime in water is known as milk of lime. 

How is Calcium Hydroxide (Slaked lime), Ca(OH)2 Prepared?

Description : How is Calcium Hydroxide (Slaked lime), Ca(OH)2 Prepared? 

Last Answer :  Calcium hydroxide is prepared by adding water to quick lime, CaO.

Chemical formula of washing soda is (1) Na2 SO4 .10H2O (2) NaHCO3 (3) Na2CO3 .10H2O (4) Ca(OH)2

Description : Chemical formula of washing soda is (1) Na2 SO4 .10H2O (2) NaHCO3 (3) Na2CO3 .10H2O (4) Ca(OH)2

Last Answer : Na2CO3 .10H2O

Bessemerization is carried out for (I) Fe (II) Cu (III) Al (IV) silver

Description : Bessemerization is carried out for (I) Fe (II) Cu (III) Al (IV) silver

Last Answer : Bessemerization is carried out for (I) Fe (II) Cu (III) Al (IV) silver A. I,II B. II,III C. I,III D. All

Leaching can be used for the extraction of which metals (i) Pb (ii) Al (iii) Ag (iv) Au

Description : Leaching can be used for the extraction of which metals (i) Pb (ii) Al (iii) Ag (iv) Au

Last Answer : Leaching can be used for the extraction of which metals (i) Pb (ii) Al (iii) Ag (iv) Au A. (ii) (iii) and ... iii) C. (ii) and (iv) D. (iii) and (iv)

9. Match List I (Mineral Oil Refineries) with List II (States) and select the correct answer using the code given below : L i st I L i st I I (Miner al Oil (St at es) Refiner ies) A. Numaligarh I. Punjab B. Bathinda II. Andhra Pradesh C. Tatipaka III. Madhya Pradesh D. Bina IV. Assam (1) A-IV, B-II, C-III, D-I (2) A-IV, B-I, C-II, D-III (3) A-II, B-I, C-IV, D-III (4) A-IV, B-III, C-II, D-I

Description : 9. Match List I (Mineral Oil Refineries) with List II (States) and select the correct answer using the code given below : L i st I L i st I I (Miner al Oil (St at es) Refiner ies) A. Numaligarh I. Punjab B. Bathinda II. Andhra ... C-II, D-III (3) A-II, B-I, C-IV, D-III (4) A-IV, B-III, C-II, D-I

Last Answer : (2) A-IV, B-I, C-II, D-III

State the function and shape of following parts used in induction type energy meter: i) Series magnet ii) Shunt magnet iii) Al disc iv) Brake magnet

Description : State the function and shape of following parts used in induction type energy meter: i) Series magnet ii) Shunt magnet iii) Al disc iv) Brake magnet

Last Answer : i) Series magnet: produce flux proportional to current (load current) of circuit and interact in the aluminum disc with flux produced by voltage magnet for torque production. Its shape is like letter U.  ii) ... : brakes the motion of the aluminum disc or slows it down. Its shape is like letter C. 

How many of the following metals can be extracted buy carbon reduction method ? Na,Al,Mg,Sn,Fe,Pb,Zn,Ca

Description : How many of the following metals can be extracted buy carbon reduction method ? Na,Al,Mg,Sn,Fe,Pb,Zn,Ca

Last Answer : How many of the following metals can be extracted buy carbon reduction method ? Na,Al,Mg,Sn,Fe,Pb,Zn,Ca

Number of metals among following which are obatained by electromentallurgy in molten state are Li, Ba, Na,Al, Fe, Cu, Pb, Sn, Ag, Zn, Ca, Mg.

Description : Number of metals among following which are obatained by electromentallurgy in molten state are Li, Ba, Na,Al, Fe, Cu, Pb, Sn, Ag, Zn, Ca, Mg.

Last Answer : Number of metals among following which are obatained by electromentallurgy in molten state are Li, Ba, Na,Al, Fe, Cu, Pb, Sn, Ag, Zn, Ca, Mg.

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

Select the only correct option `Fe(OH)_(3)` sol.

Description : Select the only correct option `Fe(OH)_(3)` sol.

Last Answer : Select the only correct option `Fe(OH)_(3)` sol. A. (I) (iii) (Q) B. (IV) (i) (Q) C. (I) (iii) (R) D. (IV) (iv) (S)

When negatively charged colloids like `As_(2)S_(3)` sol is added to positively charged `Fe(OH)_(3)` sol in suitable amounts

Description : When negatively charged colloids like `As_(2)S_(3)` sol is added to positively charged `Fe(OH)_(3)` sol in suitable amounts

Last Answer : When negatively charged colloids like `As_(2)S_(3)` sol is added to positively charged `Fe ... colloids. D. They become negatively charged colloids.