H₃PO₂ and H₂O

H⁺/H₂O

HgSO₄/H₂SO₄

Cu₂Cl₂

\(Cl-{ CH }_{ 2 }-CH_{ 2 }-\overset { \overset { CH_{ 3 } }{ | } }{ \underset { \underset { CH_{ 3 } }{ | } }{ CH } } \)

\({ H }_{ 3 }C-{ CH }_{ 2 }-\overset { \overset { CH_{ 2 }Cl }{ | } }{ CH } -{ CH }_{ 3 }\)

\(\\ { H }_{ 3 }C-{ CH }_{ 2 }-\overset { \overset { CH_{ 3 } }{ | } }{ \underset { \underset { CL{ } }{ | } }{ C } } -{ CH }_{ 3 }\)

\({ H }_{ 3 }C-{ CH }-\overset { \overset { CH_{ 3 } }{ | } }{ \underset { \underset { Cl }{ | } }{ C } } \)

anilinium chloride

O – nitro aniline

benzene diazonium chloride

m– nitro benzoic acid

4 – chloro – 2,3 – dimethyl pentan – 1-ol

2,3 – dimethyl – 4- chloropentan -1-ol

2,3,4 – trimethyl – 4- chlorobutan -1-ol

4– chloro – 2,3,4 – trimethyl pentan – 1-ol

NaCl

Ba(NO₃)₂

K₃[Fe(CN)₆]

Al₂(SO₄)₃

2N

0.002N

0.02N

0.2N

BF₃

PF₃

CF₄

SiF₄

(2.5 x 2) hours

\(\left( \frac { 2.5 }{ 2 } \right) \) hours

2.5 hours

Without knowing the rate constant, t_1/2 cannot be determined from the given data

-0.6\({ \Delta }_{ 0 }\)

0

2(P-\({ \Delta }_{ 0 }\))

2(P+\({ \Delta }_{ 0 }\))

their magnetic behaviour

their unfilled d orbitals

their ability to adopt variable oxidation states

their chemical reactivity

Cu, Mn

Cu, Al, Mg

Al, Mn

Al, Cu, Mn, Mg

HI

HF

HBr

HCl

\({ Cr }_{ 2 }{ O }_{ 3 }+2Al\longrightarrow { Al }_{ 2 }{ O }_{ 3 }+2Cr\)

\(\mathrm{Al}_2 \mathrm{O}_3+2 \mathrm{Cr} \longrightarrow \mathrm{Cr}_2 \mathrm{O}_3+2 \mathrm{Al}\)

\(3Ti{ O }_{ 2 }+4Al\longrightarrow 2A{ l }_{ 2 }{ O }_{ 3 }+3Ti\)

none of these

Al

Ni

Cu

Zn