Description : The major product (Y) of the following reactions is
Last Answer : The major product (Y) of the following reactions is A. B. C. D.
Description : Consider the following sequence of reactions The product (A) and (B) are, respectively :
Last Answer : Consider the following sequence of reactions The product (A) and (B) are, respectively : A. B. C. D.
Description : Consider the following sequence of reactions: Identify product C:
Last Answer : Consider the following sequence of reactions: Identify product C: A. B. C. D.
Description : Consider the following nuclear reactions: `""_(92)""^(238)Mto.""_(y)""^(x)N+2.""_(2)""^(4)He, ""_(x)""^(y)Nto ""_(B)""^(A)L+2beta""^(+)` The number of
Last Answer : Consider the following nuclear reactions: `""_(92)""^(238)Mto.""_(y)""^(x)N+2.""_(2)""^(4)He, ""_ ... in the element L is A. 142 B. 144 C. 140 D. 146
Description : The major product of the following reactions is :
Last Answer : The major product of the following reactions is : A. B. C. D.
Description : In the following reactions, the major product W is:
Last Answer : In the following reactions, the major product W is: A. B. C. D.
Description : The major product U in the following reactions is
Last Answer : The major product U in the following reactions is A. B. C. D.
Description : In which of the following reactions correct major product is mentioned ?
Last Answer : In which of the following reactions correct major product is mentioned ? A. B. C. D.
Description : What is the major product obtained from the following reactions ? `CH_(3)COCH_(2)COOH overset("heat")to` product
Last Answer : What is the major product obtained from the following reactions ? `CH_(3)COCH_(2)COOH overset("heat")to` ... -overset(OH)overset(|)(C)=CH_(2)` D.
Description : What is the major product obtained from the following reactions ? `HOCH_(2)overset(O)overset(||)(C)OH overset(SOCl_(2))to overset(CH_(3)OH)to`
Last Answer : What is the major product obtained from the following reactions ? `HOCH_(2)overset(O)overset(||)(C)OH overset( ... )COOCH_(3)` D. `CH_(3)COCH_(2)COOH`
Description : The major product of the following reactions is
Last Answer : The major product of the following reactions is A. B. C. D.
Description : The major product of the following reactions sequence is
Last Answer : The major product of the following reactions sequence is A. B. C. D.
Description : The major product Y in the following sequence of reaction is: Aniline `overset((i) NaNO_(2)//HCl,273K)underset((ii)CuCN//KCN)to(X) overset((i)"DIBAL-H
Last Answer : The major product Y in the following sequence of reaction is: Aniline `overset((i) NaNO_(2)//HCl,273K)underset((ii)CuCN ... H_(2)O)to (Y)` A. B. C. D.
Description : Two half-reactions of an electrochemical cell are given below : MnO-4 (aq) + 8H+ (aq) + 5e- → Mn2+ (aq) + 4H2O (I), E° = 1.51 V Sn2+ (aq) → Sn4+ (aq) + 2e- ... the redox equation from the standard potential of the cell and predict if the reaction is reactant favoured or product favoured. -Chemistry
Last Answer : The reactions can be represented at anode and at cathode in the following ways : At anode (oxidation) : Sn2+ → = Sn4+ (aq) + 2e- ] 5 E° = + 0.15 V At cathode (reduction) : MnO-4(aq) + 8H+ ... = E°cathode - E°anode = 1.51 - 0.15 = + 1.36 V ∴ Positive value of E°cell favours formation of product.
Description : Two half-reactions of an electrochemical cell are given below : MnO-4 (aq) + 8H+ (aq) + 5e- → Mn2+ (aq) + 4H2O (I), E° = 1.51 V Sn2+ (aq) → Sn4+ (aq) + ... -reactions and calculate the cell potential from the standard potentials and predict if the reaction is reactant or product favoured. -Chemistry
Last Answer : The reactions can be represented at anode and at cathode in the following ways : At anode (oxidation) : Sn2+ → Sn4+ (aq) + 2e- ] 5 E° = + 0.15 V Af cathode (reduction) : MnO-4(aq) + 8H+ ( ... = E°cathode - E°anode = 1.51 - 0.15 = + 1.36 V ∴ Positive value of E°cell favours formation of product.
Description : For reactions in parallel viz A → P (desired product) and A → Q (unwanted product), if the order of the desired reaction is higher than that of the undesired reaction, a (A) Batch reactor is preferred over a ... a single CSTR for high yield (C) Both (A) and (B) (D) Single CSTR is the most suitable
Last Answer : (C) Both (A) and (B)
Description : Identify the INCORRECT statement below regarding chemical equilibrium. A All chemical reactions are, in principle, reversible. B Equilibrium is achieved when the forward reaction rate equals the ... equilibrium constant. E Equilibrium is achieved when reactant and product concentrations are equal.
Last Answer : E Equilibrium is achieved when reactant and product concentrations are equal.
Description : In protolytic reactions in which the reactants are much stronger as an acid and a base than the products, the proton transfer reaction: w) does not occur x) approaches completeness y) produces a much stronger acid and a much weaker base z) produces a much weaker acid and a much stronger base
Last Answer : ANSWER: X -- APPROACHES COMPLETENESS
Description : Which of the following chemical reactions does not lead to formation of a salt? w) Reaction of salts with acids. x) The reaction of base anhydrides with acid anhydrides. y) Action of water on oxides of nonmetals. z) Reaction of acid with base.
Last Answer : ANSWER: Y -- ACTION OF WATER ON OXIDES OF NONMETALS. (If water reacts with oxides of nonmetals, an acid is formed.)
Description : Which of the following reactions involve NEITHER oxidation nor reduction? w) burning antimony in chlorine x) decomposition of potassium chlorate y) reaction of sodium with water z) reaction of potassium hydroxide with nitric acid
Last Answer : ANSWER: Z -- REACTION OF POTASSIUM HYDROXIDE WITH NITRIC ACID
Description : The product `(Y)` of the following sequence of the reactions would be
Last Answer : The product `(Y)` of the following sequence of the reactions would be A. B. C. D.
Description : Consider path II, choose the major product for 1 and 2:
Last Answer : Consider path II, choose the major product for 1 and 2: A. `1-Y, 2-X` B. `1-X,2-Y` C. `1-X,2-X` D. `1-Y,2-Y`
Description : How do you process your reactions to the people you consider beautiful or ugly?
Last Answer : I am a bit weird in that I find beauty in everyone. Of course I notice “whack in the face beauty” but in every person I see something. If I meet a person that is deformed or has some illness that has made them commercially less attractive my heart gets sore.
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.
Description : Consider the following reactions `underset(2)(Xe)+underset(1)(F_2)overset(Ni)to A` `underset(1)(Xe)+underset(20)(F_2)to B` `underset(1)(Xe)+underset(5
Last Answer : Consider the following reactions `underset(2)(Xe)+underset(1)(F_2)overset(Ni)to A` `underset(1)(Xe)+underset(20 ... B D. A,B, C are act as lewis base.
Description : Consider the following nuclear reactions: (1) `._(7)^(14)N + ._(2)^(4)HE to ._(8)^(17)O + ._(1)^(1)H` (2) `._(4)^(9)Be + ._(1)^(1)H to ._(3)^(9)Li + .
Last Answer : Consider the following nuclear reactions: (1) `._(7)^(14)N + ._(2)^(4)HE to ._(8)^(17)O + ._(1)^(1)H` (2 ... 4 B. 1 and 2 C. 1,3 and 4 D. 1,2,3 and 4
Description : Consider the following sequence of reactions: The products (B) and (C) are:
Last Answer : Consider the following sequence of reactions: The products (B) and (C) are: A. B. C. D.
Description : Consider the following sequence of reactions : `H_(2)C = CH-CH =CH_(2) overset(Br_(1)(1 "mole"))underset(C CI_(4))rarrA overset(1.KCN("excess"))unders
Last Answer : Consider the following sequence of reactions : `H_(2)C = CH-CH =CH_(2) overset(Br_(1)(1 "mole"))underset(C ... ))underset(|)(CH)-(CH_(2))_(2)-NH_(2)`
Description : Consider the following sequence of reactions: `overset(C CI_(4))underset(Delta)rarr A overset(1.CH_(2)=CH-CH_(2)Br)underset(2.H_(3)O^(o+),Delta)rarrB`
Last Answer : Consider the following sequence of reactions: `overset(C CI_(4))underset(Delta)rarr A overset(1.CH_(2)=CH-CH_(2) ... end product (B) is: A. B. C. D.
Description : Consider the following reactions at `1000^(@)C`. (A) `Zn_((s))+1/2 O_(2(g)) rarr ZnO_((s)), DeltaG^(@)=-360` kJ/mol (B) `C_("(gra)")+1/2 O_(2(g)) rarr
Last Answer : Consider the following reactions at `1000^(@)C`. (A) `Zn_((s))+1/2 O_(2(g)) rarr ZnO_((s)), DeltaG^( ... a) and (b) are true D. both (a) and (b) false
Description : Consider the following statements: 1. The atmosphere of the primitive earth was reducing 2. The primary source of energy for the chemosynthetic reactions on earth that led to the origin of life was the solar energy 3. Liquid water did not ... 1 and 2 (b) 1 and 4 (c) 1, 2, and 3 (d) 1, 3, and 4
Last Answer : Ans:(d)
Description : Consider the following reaction, Nitrite + Acetic acid + Thiourea `to Na_(2) uarr + HSCN +2H_(2)O`. Formation of the product in the above reaction can
Last Answer : Consider the following reaction, Nitrite + Acetic acid + Thiourea `to Na_(2) uarr + HSCN +2H_(2)O ... (4)// HCl`, when colourless solution is formed.
Description : Consider the following sequence of reaction: The final product is:
Last Answer : Consider the following sequence of reaction: The final product is: A. B. C. D.
Description : Consider the following chemical reaction X + Barium chloride——–> Y + Sodium chloride (White ppt) (a) Identify ‘X’ and ‘Y’ (b) The type of reaction -Democratic 10th
Last Answer : (a) ‘X’ is Na2SO4 and Y is BaSO4. (b) The type of reaction Na2SO4 + BaCl2—–> BaSO4 + 2NaCl (White ppt) The reaction is a precipitation reaction. It is also called a double displacement reaction.
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
Description : Major attacks going on in France right now--reactions, comments?
Last Answer : It’s sad. I don’t have much else to say.
Description : The major products formed in the following reactions is
Last Answer : The major products formed in the following reactions is A. B. C. D.
Description : Which of the following reactions represent major products?
Last Answer : Which of the following reactions represent major products? A. B. C. D.
Description : Answer: b, c, d Eosinophils constitute 1% to 3% of the leukocyte population of the bloodstream. They also reside in tissues and they exhibit phagocytic capabilities. They are less ... the cycle of events that result in recruitment and activation of inflammatory cells at sites of inflammation
Last Answer : Cellular injury from oxidants may be manifest by which of the following? a. Cell membrane lipid peroxidation b. DNA strand breaks c. Cytoskeletal disassembly d. ATP depletion
Description : Transfusions of blood products can be associated with a number of complications including immediate and delayed hemolytic reactions; nonhemolytic reactions; infectious disease transmission; and ... d. Routine impaired calcium supplementation is necessary during most massive transfusion episodes
Last Answer : Answer: a, c Immediate hemolytic reactions are usually caused by blood group ABO incompatibility although they may be caused by antigens of other blood group systems ... when associated with massive transfusion during complex intraoperative procedures such as thoracoabdominal aneurysm resection
Description : The major histocompatibility complex of antigens may be found a. On the surface of body cells. b. Only on cells sensitized during allergy reactions. c. Only on cells involved in a xenograft. d. On cells stimulated by the urushiol in poison ivy plants.
Last Answer : a. On the surface of body cells.
Description : The major product of the following reaction(A)(B)(C)(D)
Last Answer : The major product of the following reaction (A) (B) (C) (D)
Description : The major product of the following reaction is
Last Answer : The major product of the following reaction is A. B. C. D.
Description : The major product of the following reaction is :
Last Answer : The major product of the following reaction is : A. B. C. D.
Description : The major product formed in the reaction given below will be :
Last Answer : The major product formed in the reaction given below will be : A. B. C. D.