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Formaldehyde
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For the reaction,
$N _2( g )+3 H _2( g ) \rightarrow 2 NH _3( g )$, what is the relationship among $\frac{ d \left[ N _2\right]}{ dt } \frac{ d \left[ H _2\right]}{ dt }$ and $\frac{ d \left[ NH _3\right]}{ dt }$ ?
→$N _2( g )+3 H _2( g ) \rightarrow 2 NH _3( g )$, what is the relationship among $\frac{ d \left[ N _2\right]}{ dt } \frac{ d \left[ H _2\right]}{ dt }$ and $\frac{ d \left[ NH _3\right]}{ dt }$ ?
Niobium is found to crystallise with bcc structure and found to have density of $8.55 g \ cm ^{-3} (8.55 \ kg m ^{-3} )$. Determine the atomic radius of niobium if its atomic mass is $93.$
→How is dioxygen prepared in laboratory from $KClO_3?$
→From the rate expressions for the following reactions, determine their order :
(a) $2 N _2 O _{5( g )} \rightarrow 4 NO _{2( g )}+ O _{2( g )}:$ Rate $= k \left[ N _2 O _5\right]$
(b) $CHCl _{3( g )}+ Cl _{2( g )} \rightarrow CCl _{4( g )}+ HCl _{( g )}:$ Rate $= k \left[ CHL _3\right]\left[ Cl _2\right]^{1 / 2}$
(c) $C _2 H _5 Cl _{( g )} \rightarrow C _2 H _{4( g )}+ HCl _{( g )}$ : Rate $= k \left[ C _2 H _5 Cl \right]$
(d) $2 NO _{2( g )}+ F _{2( g )} \rightarrow 2 NO _2 F _{( g )} \rightarrow$ : Rate $= k \left( NO _2\right]\left[ F _2\right]$
→(a) $2 N _2 O _{5( g )} \rightarrow 4 NO _{2( g )}+ O _{2( g )}:$ Rate $= k \left[ N _2 O _5\right]$
(b) $CHCl _{3( g )}+ Cl _{2( g )} \rightarrow CCl _{4( g )}+ HCl _{( g )}:$ Rate $= k \left[ CHL _3\right]\left[ Cl _2\right]^{1 / 2}$
(c) $C _2 H _5 Cl _{( g )} \rightarrow C _2 H _{4( g )}+ HCl _{( g )}$ : Rate $= k \left[ C _2 H _5 Cl \right]$
(d) $2 NO _{2( g )}+ F _{2( g )} \rightarrow 2 NO _2 F _{( g )} \rightarrow$ : Rate $= k \left( NO _2\right]\left[ F _2\right]$
Write the structure of the products obtained from the following ketones by action of hydrazine in presence of (1) slightly acidic medium (2) strong base KOH.
Explain the order of basicity in ammonia and aliphatic amines.
Mention the different atomic and physical properties of group 16 elements.
Derive the expression for integrated rate law (equation) for the first-order reaction.
Name and draw the structure of the repeating unit in natural rubber.
Derive the relationship between degree of dissociation of an electrolyte and van’t Hoff factor.