Chemistry

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New answer posted

9 months ago

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V
Vishal Baghel

Contributor-Level 10

2CO (g) + O? (g) → 2CO? (g)
Δn_g = 2 – (2 + 1) = -1
ΔH = ΔE + Δn_g RT or ΔH = ΔE – 1RT
i.e. ΔH < E

New answer posted

9 months ago

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V
Vishal Baghel

Contributor-Level 10

All monosaccharides which differ in configuration at C? and C? gives the same osazone. Since, glucose and fructose differ from each other only in configuration at C? and C? therefore, they give the same osazone. All other options given in the questions do not satisfy this condition and hence, do not from the same osazone.

New answer posted

9 months ago

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R
Raj Pandey

Contributor-Level 9

Moles of Br2= moles of C5H10 =  5 6 0 + 1 0 = 5 7 0

w 1 6 0 = 5 7 0

w = 5 * 1 6 0 7 0 = 8 0 7 g

= 1 1 4 2 . 8 * 1 0 2 1 1 4 3 * 1 0 2 g

New answer posted

9 months ago

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V
Vishal Baghel

Contributor-Level 10

The second ionization energy of K is maximum, because the second electron is removed from fully filled 3p? subshell. The second ionization energies of group 2 elements decrease down the group.
Hence, second I.E. of Ca > second I.E. of Ba.

New answer posted

9 months ago

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Vishal Baghel

Contributor-Level 10

Nitrogen, sulphur and halogens are tested in an organic compound by lassaigne's test.
The organic compound is fused with sodium metal as to convert these elements into ionisable inorganic substances.
Na + C + N → NaCN
2Na + S → Na? S
2Na + X? → 2NaX
The cyanide, sulphide or halide ions can be confirmed in aqueous solution by usual test.

New answer posted

9 months ago

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Raj Pandey

Contributor-Level 9

Δ t = h c λ = 6 . 6 3 * 1 0 3 4 * 3 . 0 8 * 1 0 8 6 0 0 * 1 0 9

= 6 . 6 3 * 3 . 0 8 * 1 0 1 7 6 0 0 J

= 7 6 5 . 7 6 5 * 1 0 2 1 J

? 7 6 6 * 1 0 2 1 J

New answer posted

9 months ago

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V
Vishal Baghel

Contributor-Level 10

The process of moving sodium and potassium ions across the cell membrane is an active transport process involving the hydrolysis of ATP to provide the necessary energy.

New answer posted

9 months ago

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Vishal Baghel

Contributor-Level 10

The given value of µ (spin only)
2.84 = √n (n + 2) BM, So, n = 2
Among the given configurations, d? system in strong field ligand will have 2-unpaired e? in t? g set of orbitals as shown below.

New answer posted

9 months ago

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R
Raj Pandey

Contributor-Level 9

d [ C ] d t = ( 2 0 1 0 1 0 ) = 1 m m o l d m 3

+ d [ D ] d t = { d ( B ) d t } * 1 . 5 = 3 2 { d [ B ] d t }

{ d [ B ] d t } = 2 * { d [ A ] d t }

1 6 { d [ B ] d t } = 1 3 { d [ A ] d t } = 1 9 { + d [ D ] d t } = d [ C ] d t

rate of reaction = + d [ C ] d t  = 1m.m dm-3 S-1

New answer posted

9 months ago

0 Follower 4 Views

V
Vishal Baghel

Contributor-Level 10

4-ethoxycarbonylpent-3-enoic acid

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