MCQ
Which is the $1^{st}$ organic compound synthesized in lab?
- ✓Urea
- BMethanol
- CAmmonia
- DSulphuric Acid
✓
Answer
Correct option: A.
Urea
It is widely accepted that urea is the first organic compound to be synthesized from inorganic chemicals. In $1828,$ the German chemist Friedrich Wöhler obtained urea artificially by treating silver cyanate with ammonium chloride.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Last molecule of $\ce{H_2O}$ is evolved from $\ce{H_2O_2}$ by :
→Given
→$(A)$ $2 CO ( g )+ O _2( g ) \rightarrow 2 CO _2( g ) \quad \Delta H _1^\theta=- x\,kJ\,mol { }^{-1}$
$(B)$ $C$ (graphite) $+ O _2$ (g) $\rightarrow CO _2$ (g) $\Delta H _2^\theta=- y\,kJ\,mol -1$ The $\Delta H ^\theta$ for the reaction $......$.$C ($ graphite $)+\frac{1}{2} O _2( g ) \rightarrow CO ( g )$ is
Which one of the following potential energy $(P.E.)$ graph is not correctly matched :
→The standard enthalpies of formation of $1, 3-$ butadiene $(g),\, CO_2(g)$ and $H_2O(g)$ at $298\,K$ are $-30, -94$ and $-68\,\, kcal/ mol,$ respectively. If the magnitude of resonance enthalpies of $1,3-$ butadiene and $CO_2$ are $10$ and $20\,\, kcal/mol,$ respectively, the enthalpy of combustion of $1, 3-$butadiene $(g)$ at $298\,K,$ is........$kcal / mol$ (enthalpy of vaporisation of $H_2O(l)$ at $298\,K = 10 \,\,kcal/mol$)
→Concentration of $H _2 SO _4$ and $Na _2 SO _4$ in a solution is $1 M$ and $1.8 \times 10^{-2} M$, respectively. Molar solubility of $PbSO _4$ in the same solution is $X \times 10^{- Y } M$ (expressed in scientific notation). The value of $Y$ is. . . .
→[Given: Solubility product of $PbSO _4\left(K_{s p}\right)=1.6 \times 10^{-8}$. For $H _2 SO _4, K_{a l}$ is very large and $\left.K_{a 2}=1.2 \times 10^{-2}\right]$
The correct $I U P A C$ name of the given compound is
→Identify which functional group is not present in following compound?
In which of the following compound electrophilic aromatic substitution take place in phenyl ring present in left hand side ?
As the rain water is the purest form of water, this can be used in lab due to:
Which of the following combination of statements is true regarding the interpretation of the atomic orbitals?
→$(1)$ An electron in an orbital of high angular momentum stays away from the nucleus than an electron in the orbital of lower angular momentum.
$(2)$ For a given value of the principal quantum number, the size of the orbit is inversely proportional to the azimuthal quantum number
$(3)$ According to wave mechanics, the ground state angular momentum is equal to $\frac {h}{2\pi }$
$(4)$ The plot of $\Psi \,\,Vs\,\,r$ for various azimuthal quantum numbers, shows peak shifting towards higher $r$ value