More the no. Of unpaired electrons, more will be the melting point .
More rhe unpaired electrons , strongwr will be the bonding hence the melting point.
So option D is correct .
Cr has 5 unpaired electron
Ti has 2
Ni has 2 but more repulsion.
Cu has 1
Zn has none unpaired electron.
5. List the Period 4 metals Ti, Cr, Ni, Cu, Zn, in order of increasing melting...
List the metals Ni, Cu, Zn, Fe, Al, Mg, and hydrogen in order of deceeasing activity.
37. Given the following list of metals: Ag, Cu, Zn, Ni answer the following (refer to Table 19.1; for credit show E' values from Table and briefly show your reasoning): A. Which metal would be the best oxidizing agent? B. Which metal would be the best reducing agent? C. Which metal(s) would dissolve in HCl? D. Which metal(s) would dissolve in HNO:?
Put the following CO, CO2, CH4 in order of increasing bond length. O CO2 < CO< CH4 CH4 < CO2 <CO CO2 < CH4 <CO O CO <CO2 < CH4 O CO < CH4 < CO2
Question 1 List the following acids in order of increasing strength: HI, H2S, HBr and HC O HI < HBr<HCl<H2S O H2S < HCl < HBr < HI
4. Suppose G is a group of order n < 0. Show that if G contains a group element of order n, then G is cyclic.
Consider the following reaction at 298 K. 3 Cr3(a) Cr(s)>3 Cr(aq) Cr (aq) Which of the following statements are correct? Choose all that apply. E cell0 The reaction is reactant-favored. n 3 mol electrons Odelta Go0 Consider the following reaction at 298K. 2 Cr3+ (a Zn (s2 Cr2* (aq)+ Zn2* (aq) Which of the following statements are correct? Choose all that apply O K<1 cell 0 Odelta Go0 OThe reaction is product-favored On-5 mol electrons
Rank the following compounds in order of increasing heat of hydrogenation. A B D E OB<C<E<A<D OD A<E<C<B OB«E<C<A<D O E<B<C<A<D O DA<C<<
18. Arrange these compounds in order of increasing boing point: t. 1-butanol I. Butanal II. propanoic acid a) I<II< III b) II <I< III
Rank the following bonds in order of increasing bond polarity. A) 1 <2<3 B) 1< 3 < 2 C)3 < 1<2 D)3<2<1 E) 2 <3 < 1
23. What is the correct order of increasing reactivity for these substrates under Sn1 conditions? A) III <I<<1 B) IV <ll<IV <1 C)I<ll<lll <TV D) IV <|| <I<li