Description : In the decay process: `A overset(-alpha)(to) B overset(-alpHa)(to) C overset(-beta)(to)C` 1. A and B are isobars 2. A and D are isotopes 3. C and D ar
Last Answer : In the decay process: `A overset(-alpha)(to) B overset(-alpHa)(to) C overset(-beta)(to)C` 1. A and B are ... 2 B. 2 and 3 C. 3 and 4 D. 1 and 4
Description : Uranium `._(92)U^(238)` decayed to `._(82)Pb^(206)`. They decay process is `._(92)U^(238) underset((x alpha, y beta))(rarr ._(82)Pb^(206))` `t_(1//2)`
Last Answer : Uranium `._(92)U^(238)` decayed to `._(82)Pb^(206)`. They decay process is `._(92)U^(238) underset((x alpha ... 2.303)/(4.5 xx 10^(9)) xx 0.693 log 4`
Last Answer : Uranium `._(92)U^(238)` decayed to `._(82)Pb^(206)`. They decay process is `._(92)U^(238) underset((x alpha, ... be A. 5.25 B. 0.125 C. 12.5 D. 1.25
Description : Assertion `(A): ` The emission of `alpha-` particles results in the formation of isodiapher of parent element. Reason `(R) : ` Isodiaphers have same i
Last Answer : Assertion `(A): ` The emission of `alpha-` particles results in the formation of isodiapher of parent element ... If both (A) and (R ) are incorrect.
Description : Find the maximum energy that a beta particle can have in the following decay `^176 Lu rarr ^176 Hf + e + vec v`. Alomic mass of `^176 Lu` is `175.9426
Last Answer : Find the maximum energy that a beta particle can have in the following decay `^176 Lu rarr ^176 Hf + e + ... and that of `^176 Hf` is `175.941420 u`.
Description : A radioactive element `X`, decays by the sequence and with half-lives, given below, `X underset(30"min")overset(alpha)(rarr) Y underset(2"days")overse
Last Answer : A radioactive element `X`, decays by the sequence and with half-lives, given below, `X underset(30"min" ... D. The mass number of Y is greater than X
Description : The nuclide X undergoes `alpha`-decay and other nuclide Y, `beta^(-)` decay. Which of the following statements are correct? 1. The `beta^(-1)` particl
Last Answer : The nuclide X undergoes `alpha`-decay and other nuclide Y, `beta^(-)` decay. Which of the following ... and 4 are correct D. 1 and 4 are correct
Description : The nuclide `X` undergoes `alpha`-decay and another nuclides `Y` undergoes `beta^(ɵ)`-decay, which of the following statement `"is"//"are"` correct? a
Last Answer : The nuclide `X` undergoes `alpha`-decay and another nuclides `Y` undergoes `beta^(ɵ)`-decay, ... beta`-particle emitted by Y will have the same speed
Description : The radioactive nuclide `._(90)^(234) Th` shows two successive `beta-` decay followed by one `alpha-` decay. The atomic number and mass number respect
Last Answer : The radioactive nuclide `._(90)^(234) Th` shows two successive `beta-` decay followed by one `alpha-` ... is: A. 92234 B. 94230 C. 90230 D. 92230
Description : In radioactive decay, the emission of an electron is characteristic of: w) Alpha decay x) Beta decay y) Gamma decay z) X-rays
Last Answer : ANSWER: X -- BETA DECAY
Description : Assertion `(A):` `._(92)U^(238) (IIIB)overset(-alpha)rarrAoverset(-alpha)rarrB overset(-beta)rarrC` Reason `(R):` Element `B` will be of `II A ` group
Last Answer : Assertion `(A):` `._(92)U^(238) (IIIB)overset(-alpha)rarrAoverset(-alpha)rarrB overset(-beta)rarrC` Reason ... D. If both (A) and (R ) are incorrect.
Description : In the sequence of the following nuclear reaction, `X_(98)^(238) overset(-alpha)(to) Y overset(-beta)(to)L overset(nalpha)(to) ._(90)M^(218)` What is
Last Answer : In the sequence of the following nuclear reaction, `X_(98)^(238) overset(-alpha)(to) Y overset(-beta)(to)L overset( ... of n? A. 3 B. 4 C. 5 D. 6
Description : In the disintegration of a radioactive element, `alpha`- and `beta`-particles are evolved from the nucleus. `._(0)n^(1) rarr ._(1)H^(1) + ._(-1)e^(0)
Last Answer : In the disintegration of a radioactive element, `alpha`- and `beta`-particles are evolved from the nucleus. `._(0 ... C. `2 alpha, 2 beta` D. `n beta`
Last Answer : In the disintegration of a radioactive element, `alpha`- and `beta`-particles are evolved from the ... C. decreases by 2 unit D. remains unaffected
Last Answer : In the disintegration of a radioactive element, `alpha`- and `beta`-particles are evolved from the nucleus. `._(0) ... in A. IIA B. IA C. IIB D. IVB
Last Answer : In the disintegration of a radioactive element, `alpha`- and `beta`-particles are evolved from the nucleus. ... , beta, beta` D. `beta, gamma, alpha`
Description : In the process of extraction of gold. Roasted gold ore `+CN^(-)+H_(2)O overset(O_(2))rarr [X]+OH^(-)` `[X]+Znrarr [Y]+Au` Identify the complexes `[X]
Last Answer : In the process of extraction of gold. Roasted gold ore `+CN^(-)+H_(2)O overset(O_(2))rarr [X]+OH^(-)` `[X]+ ... (4)]^(-),[Y] =[Zn (CN_(4))]^(-2)`
Description : A nuclide has mass number (A) and atomic number (Z). During a radioactive process if: (A) both A and Z decrease, the process is called `alpha`-decay (
Last Answer : A nuclide has mass number (A) and atomic number (Z). During a radioactive process if: (A) both A and Z decrease, ... 4 C. 1,3, and 4 D. 1,2, and 4
Description : `CaOCl_(2)overset(Delta)underset(CoCl_(2))rarr`product, The product are
Last Answer : `CaOCl_(2)overset(Delta)underset(CoCl_(2))rarr`product, The product are A. `CaCl_(2)` B. `O_(2)` C. `Ca(ClO_(3))_(2)` D. All of these
Description : `underset(OH^(Ɵ))overset("Conc.")rarr` Incorrect statement (s) reagarding the reaction is/are:
Last Answer : `underset(OH^(Ɵ))overset("Conc.")rarr` Incorrect statement (s) reagarding the reaction is/are: ... . D. Reaction is an example of redox reaction
Description : `CH_(3) equiv C CH_(3) overset(Na, NH_(3) (i))(rarr) Q overset("dil. Cold")underset(KMnO_(4))(rarr) R` If Q is an unsaturated hydrocarbon then product
Last Answer : `CH_(3) equiv C CH_(3) overset(Na, NH_(3) (i))(rarr) Q overset("dil. Cold")underset(KMnO_(4))(rarr) R` If ... ii & iii B. i & ii C. only v D. only iv
Description : `CH_(2)OHCH_(2)CH_(2)COCH_(3)overset("Reagent")rarr` `CH_(2)OHCH_(2)CH_(2)CH_(2)CH_(3)` Suitable reagent for above reaction is :-
Last Answer : `CH_(2)OHCH_(2)CH_(2)COCH_(3)overset("Reagent")rarr` `CH_(2)OHCH_(2)CH_(2)CH_(2)CH_(3)` Suitable reagent for ... /C_(2)H_(5)ONa` C. Red P + HI D. All
Description : `X underset("ether")overset(Mg)rarrY underset(H^(+))overset("Dry " CO_(2))rarr X overset("hot " KMnO_(4))rarrP` The two isomeric compounds which will
Last Answer : `X underset("ether")overset(Mg)rarrY underset(H^(+))overset("Dry " CO_(2))rarr X overset("hot " KMnO_(4)) ... B. III and IV C. I and IV D. II and III
Description : `Ph-NO_(2) overset(Sn//HCl)rarr underset("HCl, " 0^(@)C-5^(@)C)overset(NaNO_(2))rarr underset(Ph-OH)overset("Basic medium")rarr "Product Y"` Find the
Last Answer : `Ph-NO_(2) overset(Sn//HCl)rarr underset("HCl, " 0^(@)C-5^(@)C)overset(NaNO_(2) ... report your answer as `underset(2)overset("Molecular weight")rarr`
Description : How many N atom are present in final product `overset(Sn//HCl)rarr overset(NaNO_(2)//HCl)rarr overset(H_(3)PO_(2))rarr` Final product.
Last Answer : How many N atom are present in final product `overset(Sn//HCl)rarr overset(NaNO_(2)//HCl)rarr overset(H_(3)PO_(2))rarr` Final product.
Description : In the reaction, `C_(6)H_(5)NH_(2)underset(0-5^(@)C)overset(NaNO_(2)+HCl)rarr(A)underset(KCN)overset(CuCN)rarr(B)overset(H^(+)//H_(2)O)rarr(C)` the pr
Last Answer : In the reaction, `C_(6)H_(5)NH_(2)underset(0-5^(@)C)overset(NaNO_(2)+HCl)rarr(A)underset(KCN)overset(CuCN ... COOH` C. `C_(6)H_(5)OH` D. none of these
Description : In the reaction sequence `underset(350^(@))overset(NaOH)rarr A overset(CH_(3)I)rarr B overset(HI)rarr C+D` ltbr. A, B, C, and D are given by the set :
Last Answer : In the reaction sequence `underset(350^(@))overset(NaOH)rarr A overset(CH_(3)I)rarr B overset(HI)rarr C+D` ltbr ... , `C_(6)H_(5)l, C_(2)H_(5)OH`
Description : `CH_(3)CH_(2)CH(OH)CH(CH_(3))_(2)+CH_(3)COCI overset("base")rarr CH_(3)CH_(2)CH(OCOCH_(3))CH(CH_(3))_(2)+HCI` In the above reaction, if the reactant a
Last Answer : `CH_(3)CH_(2)CH(OH)CH(CH_(3))_(2)+CH_(3)COCI overset("base")rarr CH_(3)CH_(2) ... the same configuration at the chiral atom D. be optically inactive
Description : `(P) overset(NaH)rarr (Q) uarr overset(CuSO_(4))rarr (R) darr` black precipitate, (P) may be
Last Answer : `(P) overset(NaH)rarr (Q) uarr overset(CuSO_(4))rarr (R) darr` black precipitate, (P) may be A. `SCl_(2)` B. `PCl_(3)` C. `NCl_(3)` D. HCl
Description : How many are redox reaction- `{:((i),K_(4)[Fe (CN)_(6)] + "conc."H_(2)SO_(4) overset(Delta)rarr,(ii),"conc." H_(2)SO_(4) + KCl rarr),((iii),"conc." H_
Last Answer : How many are redox reaction- `{:((i),K_(4)[Fe (CN)_(6)] + "conc."H_(2)SO_(4) overset(Delta)rarr,(ii)," ... ,((ix),"conc." H_(2)SO_(4) + Cu rarr,,):}`
Description : `NH_(3) + NaOCl overset("golatin or " EDTA^(+))rarr` products The number of moles of `N - H` bonds present in one mole of the strongest nucleophile pr
Last Answer : `NH_(3) + NaOCl overset("golatin or " EDTA^(+))rarr` products The number of moles of ... mole of the strongest nucleophile present in the product is:
Description : In how many of the following reactions `N_(2)` gas may be released `{:((a) NH_(4)NO_(2) overset(Delta)rarr,(b) (NH_(4))_(2) Cr_(2)O_(7) overset(Delta)
Last Answer : In how many of the following reactions `N_(2)` gas may be released `{:((a) NH_(4)NO_(2) overset(Delta) ... i) Ba(N_(3))_(2) overset(Delta) rarr):}`
Description : `B_(3)^(3-)+Conc.H_(2)SO_(4)+CH_(3)-CH_(2)-OH overset(ignite)rarr(A)` What is the oxidation number of central atom that is responsible for green flame
Last Answer : `B_(3)^(3-)+Conc.H_(2)SO_(4)+CH_(3)-CH_(2)-OH overset(ignite)rarr(A)` What is the ... atom that is responsible for green flame in compound `(A)`?
Description : Fill in the blanks with appropriate options to complete the given equation `Fatsoverset(A)rarr.....B...underset("Lipase")overset("Pancreatic")rarr"Mon
Last Answer : Fill in the blanks with appropriate options to complete the given equation `Fatsoverset(A)rarr..... ... Diglycerides D. A- Lipase, B - Polyglycerides
Description : Of the following reactions, how many reaction, are used for the preparation of amines? (a) `R-C-=N overset(LiAIh_(4))rarr` (b) `R-overset(O)overset(||
Last Answer : Of the following reactions, how many reaction, are used for the preparation of amines? (a) `R-C-=N overset( ... R-CH_(2)-NO_(2) overset(H_(2),Ni)rarr`
Description : `Ph-overset(O)overset(||)(C)-NH_(2)+Ph-CH_(2)-overset(O)overset(||)(C)-overset(15)(N)H_(2) overset(overset(Theta)(OH)+Br_(2))rarr A+B` Products A and
Last Answer : `Ph-overset(O)overset(||)(C)-NH_(2)+Ph-CH_(2)-overset(O)overset(||)(C)-overset(15)(N)H_(2) overset(overset ... (2)-NH_(2)` D. `Ph-overset(15)(N)H_(2)`
Description : `C_(6)H_(5)-CH_(2)-I overset(NaN_(3))underset(Delta)rarr` Products Reaction is assumed to involve nitrene as intermediate, then various possible produ
Last Answer : `C_(6)H_(5)-CH_(2)-I overset(NaN_(3))underset(Delta)rarr` Products Reaction is assumed to involve nitrene as ... (2)` C. `C_(6)H_(5)CN=NH` D.
Description : `overset(1.Br_(2)^(-)+KOH, Delta)underset(2.H_(3)O^(o+))rarr` The product of above reaction is:
Last Answer : `overset(1.Br_(2)^(-)+KOH, Delta)underset(2.H_(3)O^(o+))rarr` The product of above reaction is: A. B. C. D.
Description : The major end product (B) of the reaction: `overset(HCI)underset(ZnCl_(2))rarr A overset(1.NaCN("excess"))underset(2.H_(2),Ni)rarr B`
Last Answer : The major end product (B) of the reaction: `overset(HCI)underset(ZnCl_(2))rarr A overset(1.NaCN("excess"))underset(2.H_(2),Ni)rarr B` A. B. C. D.
Description : The product formed in the reaction is: `overset(1.LiAlH_(4))underset(2.H_(2)O)rarr`
Last Answer : The product formed in the reaction is: `overset(1.LiAlH_(4))underset(2.H_(2)O)rarr` A. B. C. `H_(3)C- ... )underset(|)(N)-(CH_(2))_(3) -CH_(2)OH`
Description : The major product (X) of the reaction is: `overset(H_(2),Ni)underset(Delta)rarr X`
Last Answer : The major product (X) of the reaction is: `overset(H_(2),Ni)underset(Delta)rarr X` A. B. C. D.
Description : `overset(1.Br_(2)(1"mole"), C CI_(4))underset(2.(CH_(3))_(2)NH("excess"))rarr A overset(1.CH_(3)I("excess"))underset(2.AgOH,Delta)rarr B` (Major produ
Last Answer : `overset(1.Br_(2)(1"mole"), C CI_(4))underset(2.(CH_(3))_(2)NH("excess"))rarr A overset(1.CH_(3) ... product) The major product (B) is: A. B. C. D.
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 : The major product formed in the reaction: `overset(p-TsOH("Trace"))underset(C_(6)H_(6).Delta)rarr`
Last Answer : The major product formed in the reaction: `overset(p-TsOH("Trace"))underset(C_(6)H_(6).Delta)rarr` A. B. C. D.
Description : `CH_(3)CH_(2)Br overset(AgCN)rarr A overset(NaOH, Delta)underset(overset(o+)(H_(3)O))rarrB,(B)` is:
Last Answer : `CH_(3)CH_(2)Br overset(AgCN)rarr A overset(NaOH, Delta)underset(overset(o+)(H_(3)O))rarrB,(B)` is: A. `CH_( ... (2)NH_(2)` C. `CH_(3)CH_(2)NH_(2)` D.
Description : In the given reaction `CH_(3)-CH_(2)-NH-CH_(2)-CH_(2)-CI overset((i)CH_(3)I ("excess"))underset((ii)AgOH//Delta)rarr[X]` is the major product, [X] wil
Last Answer : In the given reaction `CH_(3)-CH_(2)-NH-CH_(2)-CH_(2)-CI overset((i)CH_(3)I ("excess"))underset((ii)AgOH// ... of (a) and (b) D. `CH_(3) -CH_(2)-CI`