AP EAMCET · Chemistry · Some Basic Concepts of Chemistry
The weight percentage of \(\mathrm{C}\) and \(\mathrm{H}\) in a hydrocarbon is in the ratio of \(4: 1\). What is its empirical formula?
- A \(\mathrm{CH}\)
- B \(\mathrm{CH}_2\)
- C \(\mathrm{CH}_3\)
- D \(\mathrm{CH}_4\)
Answer & Solution
Correct Answer
(C) \(\mathrm{CH}_3\)
Step-by-step Solution
Detailed explanation
\(\mathrm{M}(\mathrm{c})=12.01, \mathrm{M}(\mathrm{H})=1.0\) \(\mathrm{m}(\mathrm{c})=4 \times \mathrm{m}(\mathrm{H})\) (Given) If \(\mathrm{n}(\mathrm{c})=1\) and \(\mathrm{n}(\mathrm{H})=3\) \(\Rightarrow \mathrm{m}(\mathrm{c})=12.01\) and \(\mathrm{m}(\mathrm{H})=3\) and…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- \(\mathrm{KMnO}_4\) reacts with \(\mathrm{KI}\), in basic medium to form \(\mathrm{I}_2\) and \(\mathrm{MnO}_2\). When \(250 \mathrm{~mL}\) of \(0.1 \mathrm{M} \mathrm{KI}\) solution is mixed with \(250 \mathrm{~mL}\) of \(0.02 \mathrm{M}\) \(\mathrm{KMnO}_4\) in basic medium, what is the number of moles of \(\mathrm{I}_2\) formed?AP EAMCET 2014 Medium
- If the enthalpy and entropy change for a reaction at \(298 \mathrm{~K}\) are \(-145 \mathrm{~kJ} \mathrm{~mol}^{-1}\) and \(-650 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}\) respectively, which one of the following statements is correct?AP EAMCET 2023 Easy
- Match the following
The correct answer isAP EAMCET 2023 Easy - The correct order of increasing stabilities of the following carbocations is
(i) allyl carbocation
(ii) ethyl carbocation
(iii) benzyl carbocation
(iv) isobutyl carbocationAP EAMCET 2021 Easy - Which of the following statement(s) is/are correct?
(i) \(\mathrm{Li} \mathrm{NO} \mathrm{NO}_3, \mathrm{Ba}\left(\mathrm{NO}_3\right)_2\) both will give \(\mathrm{NO}_2\) on heatiing
(ii) \(\mathrm{BaSO}_4\) is less soluble in water than \(\mathrm{CaSO}_4\)
(iii) Alkaline earth metals do not dissolve in liquid ammoniaAP EAMCET 2023 Easy - Identify the correct statements from the following
(i) Petrol and CNG operated automobiles cause less pollution
(ii) Alkanes having tertiary hydrogen can be oxidised to alcohols by \(\mathrm{KMnO}_4\)
(iii) Methane can be prepared by Kolbe's electrolytic method.
(iv) Alkyl chloride on reduction with zinc and dilute hydrochloric acid gives alkaneAP EAMCET 2018 Medium
More PYQs from AP EAMCET
- If \(\mathbf{a}=\hat{\mathbf{i}}+2 \hat{\mathbf{j}}+3 \hat{\mathbf{k}}, \mathbf{b}=-\hat{\mathbf{i}}+2 \hat{\mathbf{j}}+\hat{\mathbf{k}}\), \(\mathbf{c}=\hat{\mathbf{i}}+2 \hat{\mathbf{j}}-2 \hat{\mathbf{k}}\), \(\mathbf{n}\) is perpendicular to both \(\mathbf{a}\) and \(\mathbf{b}\) and \(\theta\) is the angle between \(\mathbf{c}\) and \(\mathbf{n}\) then \(\sin \theta=\)AP EAMCET 2018 Medium
- Let \(x, y, z\) be real numbers and \(x \geq y \geq z \geq \frac{\pi}{12}\). If \(x+y+z\) \(=\frac{\pi}{2}\), then the minimum value of \(\cos x \cdot \sin y \cdot \cos z\) isAP EAMCET 2022 Hard
- Six faces of an unbiased die are numbered with \(2,3,5,7,11\) and 13 . If two such dice are thrown, then the probability that the sum on the uppermost faces of the dice is an odd number isAP EAMCET 2004 Medium
- Let \(\mathbf{a}, \mathbf{b}, \mathbf{c}\) be three vectors
(i) \((\mathbf{a} \times \mathbf{b}) \times \mathbf{c}=(\mathbf{a} \cdot \mathbf{c}) \mathbf{b}-(\mathbf{b} \cdot \mathbf{c}) \mathbf{a}\)
(ii) \(\mathbf{( a )} \times(\mathbf{b} \times \mathbf{c})=(\mathbf{a} \cdot \mathbf{b}) \mathbf{c}-(\mathbf{a} \cdot \mathbf{c}) \mathbf{b}\)AP EAMCET 2020 Easy - The pressure on a circular plate is measured by measuring the force on the plate and the radius of the plate. If the errors in measurement of the force and the radius are \(5 \%\) and \(3 \%\) respectively, the percentage of error in the measurement of pressure isAP EAMCET 2015 Medium
- For \(a \neq 0\), if the sum of the distances of a point from the points \((a, 0,0)\) and \((-a, 0,0)\) is a constant \(2 \mathrm{k}\), then the locus of that point isAP EAMCET 2018 Easy