Ask a Question

Why `Zn` reacts with dilute `H_(2)SO_(4)` to give `H_(2)` gas but `Cu` does not ?

in Education by
Why Zn reacts with dilute H2SO4 to give H2 gas but Cu does not ? Select the correct answer from above options

1 Answer

0 votes
by
Zn has higher oxidation potential than hydrogen whereas Cu has lower oxidation potential than hydrogen.

Related questions

0 votes
Q: Calculate the molarity of eaCHM of the following solutions `:` `a. 30g` of `Co(NO_(3))_(2).6H_(2)O` in `4.3L` of solution `b. 30mL` of `0.5 M H_(2)SO_
    Calculate the molarity of eaCHM of the following solutions : a.30g of Co(NO3)2.6H2O in 4.3L of solution b ... diluted to 500mL . Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: In the button cells widely used in watCHMes and other devices the following reaction takes place : `Zn(s)+Ag_(2)O(s)+H_(2)O(l) rarr Zn^(2+)(aq)+2Ag(s)
    In the button cells widely used in watCHMes and other devices the following reaction takes place : Zn(s)+Ag2O(s) ... for the reaction. Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: Arrange the following metals in the order in whiCHM they displace eaCHM other from the solution of their salts. `Al, Cu, Fe, Mg, ` and `Zn`.
    Arrange the following metals in the order in whiCHM they displace eaCHM other from the solution of their salts. Al,Cu,Fe,Mg, and Zn . Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: What is the relation between molar conductivity `(wedge_(m))` and equivalent conductivity `(wedge_(eq))` of potash alum `[K_(2)SO_(4).Al_(2)(SO_(4))_(
    What is the relation between molar conductivity (∧m) and equivalent conductivity (∧eq) of potash alum [K2SO4.Al2(SO4)3.24H2O ? Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: An aqueous solution of `K_(2)SO_(4)` is diluted by adding water. How the values of `G, k, wedge_(m)` and `wedge_(eq)` vary ?
    An aqueous solution of K2SO4 is diluted by adding water. How the values of G,k,∧m and ∧eq vary ? Select the correct answer from above options...
asked Jan 4, 2022 in Education by JackTerrance
0 votes
Q: How muCHM CHMarge is required for the following reductions `:` `a. 1 mol of Al^(3+) to Al` `b.` ` 1 mol of Cu^(2+) to Cu` `c.` `1 mol of MnO_(4)^(c-)`
    How muCHM CHMarge is required for the following reductions : a.1molofAl3+→Al b. 1molofCu2+→Cu c. 1molofMnO c- 4 to Mn2+? Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: An antifreeze solution is prepared from `222.6 g` of ethylene glycol `[C_(2)H_(4)(OH)_(2)]` and `200 g` of water. Calculate the molality of the soluti
    An antifreeze solution is prepared from 222.6g of ethylene glycol [C2H4(OH)2] and 200g of water. Calculate the ... of the solution? Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: The decomposition of dimethyl ether leads to the formation of `CH_(4),H_(2),` and `CO` and the reaction rate is given by Rate `=k[CH_(3)OCH_(3)]^(3//2
    The decomposition of dimethyl ether leads to the formation of CH4,H2, and CO and the reaction rate is given by ... and rate constant ? Select the correct answer from above options...
asked Jan 4, 2022 in Education by JackTerrance
0 votes
Q: Three electrolytic cell `A,B`, and `C` contaning solutions of `ZnSO_(4), AgNO_(3)`, and `CuSO_(4)`, respectively, are connected in series. A steady cu
    Three electrolytic cell A,B , and C contaning solutions of ZnSO4,AgNO3 , and CuSO4 , respectively, are connected ... were deposited ? Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: An aqueous solution of `CuSO_(4)` is electrolyszed using `Pt` electrodes in one case and `Cu` electrodes in another case. What are the products of ele
    An aqueous solution of CuSO4 is electrolyszed using Pt electrodes in one case and Cu electrodes in another case. What ... the cases ? Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: Can you store `CuSO_(4)` solution in `Zn` pot ?
    Can you store CuSO4 solution in Zn pot ? Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: Why coal or petrol does not burn by itself in air but once initiated by flame, it continues to burn?
    Why coal or petrol does not burn by itself in air but once initiated by flame, it continues to burn? Select the correct answer from above options...
asked Jan 4, 2022 in Education by JackTerrance
0 votes
Q: Time required to decompose `SO_(2)Cl_(2)` to half of its intial amount is `60 mi n.` If the decomposition is a first order reaction, calculate the rat
    Time required to decompose SO2Cl2 to half of its intial amount is 60min. If the decomposition is a first order ... of the reaction. Select the correct answer from above options...
asked Jan 4, 2022 in Education by JackTerrance
0 votes
Q: Write the Nernst equation and `EMF` of the following cells at `298K :` `a.` `Mg(s)|Mg^(2+)(0.001M)||Cu^(2+)(0.0001M)|Cu(s)` `b.` `Fe(s)|Fe^(2+)(0.001M
    Write the Nernst equation and EMF of the following cells at 298K: a. Mg(s)|Mg2+(0.001M)||Cu2+(0.0001M)|Cu(s) b. ... )|H2(g)(1bar)|Pt(s) Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance
0 votes
Q: Depict the galvanic in whiCHM the reaction `:` `Zn(s)+2Ag^(o+)(aq) rarr Zn^(2+)(aq)+2Ag(s)` takes place. Further show `:` ` a.` WhiCHM of the electrod
    Depict the galvanic in whiCHM the reaction : Zn(s)+2Ag⊕(aq)→Zn2+(aq)+2Ag(s) takes place. Further show ... reaction at eaCHM electrode. Select the correct answer from above options...
asked Jan 5, 2022 in Education by JackTerrance

© Copyright 2018-2023 www.Blogmepost.com. All rights reserved. Developed by Blogmepost.

...