Answer:
CnH2n+2 is the general formula for paraffins, also known as alkanes, which are saturated compounds with the general formula CnH2n+2, where n is the number of carbon atoms in the molecule. Methane (CH4), often known as C1, is the most basic of the alkanes and has the simplest structure. Normal paraffins (also known as n-paraffins or n-alkanes) are straight-chain molecules with no branches.
Explanation:
Alkanes are referred to as paraffins because they have a low affinity for a general reagent when heated. Alkanes, on the other hand, are non-reactive chemicals. When exposed to extreme circumstances, they have responses.
Answer:
Electron pair geometry - tetrahedral
molecular geometry- trigonal pyramidal
Explanation:
According to Valence Shell Electron Pair Repulsion Theory, the shape of a molecule is determined by the number of electron pairs around the central atom in the molecule. Lone pairs distort a molecule away from its expected geometry based on VSEPR. This is why the electron pair geometry differs from the actual molecular geometry.
PCl3 has four regions of electron density, three substituents and one lone pair hence its electron pair geometry is tetrahedral. However, the three substituents are arranged in a trigonal pyramidal geometry(its molecular geometry).
Answer:
(B) 73.0 hours.
Explanation:
- It is known that the decay of a radioactive isotope isotope obeys first order kinetics.
- Half-life time is the time needed for the reactants to be in its half concentration.
- If reactant has initial concentration [A₀], after half-life time its concentration will be ([A₀]/2).
- Also, it is clear that in first order decay the half-life time is independent of the initial concentration.
<em>So, the half-life of 201Tl when its concentration is 0.0136 M is (B) 73.0 hours.</em>
D it is only physical and not chemical
Diamonds and graphite are both made of carbon