List of top Chemistry Questions

Number of monochloro derivatives obtained when neo-pentane is chlorinated, is
Following statements regarding the periodic trends of chemical reactivity of the alkali metals and the halogens are given. Which of these statements gives the correct picture ?
When oxyhaemoglobin changes to de-oxyhaenioglobin, $Fe^{2+}$ ion changes from
The order of electron affinity of halogens is
Which of the following sets consists only of essential amino acids ?
Which of the following is not a characteristic of transition elements ?
Electrolysis of dilute aqueous $NaCl$ solution was carried out by passing $10\, mA$ current. The time required to liberate $0.01\, mole$ of $H_2$ gas at the cathode is $(1 \,F\,= 96500 \,C \,mol^{-1})$
The correct statement(s) about the compound given below is/are
The continuous phase contains the dispersed phase throughout, Example is
Milk changes after digestion into :
What is the equilibrium expression for the reaction, $ {{P}_{4}}(s)+5{{O}_{2}}(g) \rightleftharpoons {{P}_{4}}{{O}_{10}}(s)? $
The enthalpies of combustion of carbon and carbon monoxide are $ -393.5 $ and $ -283\,\text{kJ}\,\text{mo}{{\text{l}}^{-1}} $ respectively. The enthalpy of formation of carbon monoxide per mol is
The volumes of two $ \text{HCl} $ solutions A(0.5 N) and B(0.1 N) to be mixed for preparing 2 L of 0.2 N HCl solution are
When 0.1 mole of an acid is added to 2 L of a buffer solution, the pH of the buffer decreases by 0.5. The buffer capacity of the solution is
Which one of the following reactions is an example of auto-catalysis?
AB is an ionic solid. If the ratio of ionic radii of $ {{\text{A}}^{\text{+}}} $ and $ {{\text{B}}^{-}} $ is 0.52, what is the coordination number of $ {{\text{B}}^{-}} $ ?
Which one of the following reactions occur at the cathode?
The electronic configuration $1 s^{2},\, 2 s^{2} 2 p^{6},\, 3 s^{2} 3 p^{6} 3 d^{9}$ represents a
Unusual high boiling point of water is result of
For the reaction : $ \ce{H_2 +I_2 -> 2HI} $ , the differential rate law is
$2N HCl$ solution will have same molar concentration as a
Benzoylation of phenol in alkaline medium is known as
The $IUPAC$ name of $CH_{3}-CH=CH-C \equiv CH$ is
Addition of sodium acetate to $0.1 \,M$ acetic acid will cause
What volume of oxygen gas $(O_2)$ measured at $0^\circ C$ and 1 atm, is needed to bum completely 1L of propane gas $(C_3H_8)$ measured under the same conditions?