Recent questions in Some basic concepts in chemistry

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A battery of emf 10 V and internal resistance 3 ohm is connected to a resistor. If the current in the circuit 0.5 A, find : (i) the resistance of the resistor; (ii) the terminal voltage of the battery.

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What happens when:

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Compare any three Micro minerals on the basis of their sources and benefits.

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Find the oxidation state of oxygen in OF2 .

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Which of the following contains maximum number of molecules?

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The empirical formula of a compound is \(\mathrm{CH}_{2} \mathrm{O}\). Its molecular weight is 180 . The molecular formula of the compound is

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The correct order of bond dissociation enthalpy of halogens is:

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Polythene and PVC are examples of

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Does methyne exist? If yes give its structure and if no then explain why?

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Calculate the \(E^{\circ}\) cell for the following equation. Use these standard potentials.

asked Dec 18, 2021 in Some basic concepts in chemistry by kritika (90.1k points)

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1. Why does an aqueous solution of acid conduct electricity? 2. How does the concentration of hydrogen ions [H3O+] change when the solution of an acid is diluted with water? 3. Which has higher pH? A concentrated or dilute solution of HCl? 4. What would you observe on adding dil HCl acid to (a) Sodium bicarbonate placed in a test tube? (b) Zinc metal in a test tube.

asked Dec 18, 2021 in Some basic concepts in chemistry by kritika (90.1k points)

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Why is ICl more reactive than I2 ?

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Iodoform test is not given by

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Find the oxidation number of

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Write equations for the reactions of

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Acids, Bases and Salts Class 10 Notes for Revision easily.

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Identify the correct statement(s) : The findings from the Bohr model for H-atom are

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During electrolysis of molten \(\mathrm{NaCl}\), some water was added. What will happen?

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What will be the normality of the salt solution obtained by neutralizing \(x \mathrm{ml}\) y \((\mathrm{N}) \mathrm{HCl}\) with y \(\mathrm{ml} \mathrm{x}(\mathrm{N}) \mathrm{NaOH}\), and fipally adding \((x+y)\) ml distilled water?

asked Dec 14, 2021 in Some basic concepts in chemistry by kritika (90.1k points)

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Which of the following solutions will turn violet when a drop of lime juice is added to it?

asked Dec 14, 2021 in Some basic concepts in chemistry by kritika (90.1k points)

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Recent questions in Some basic concepts in chemistry

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