The correct order of reactivity towards nucleophilic substitution reaction for the following is:
(I) CH₃-CH₂-Cl
(II) (CH₃)₂CH-Cl
(III) CH₃-CH₂-Br

The rate of a chemical reaction generally:

 The catalyst used in the Haber process for ammonia synthesis is:

Which quantum number defines the shape of an orbital?

The oxidation state of chromium in K₂Cr₂O₇ is:

A solution with a pH of 3 is how many times more acidic than a solution with a pH of 5?

The reaction CH₃COOH + C₂H₅OH ⇌ CH₃COOC₂H₅ + H₂O is an example of:

The pH of a neutral solution at 25°C is:

Which element has the highest electronegativity?

 The order of stability of the following carbocations is:
(I) (CH₃)₃C⁺
(II) CH₃-CH₂⁺
(III) (CH₃)₂CH⁺

The process of a solid changing directly into a gas is called:

Which state of matter has a definite volume but no definite shape?

What is the atomic number of an element with 12 protons and 12 neutrons?

According to Le Chatelier's Principle, if the temperature is increased for an exothermic reaction at equilibrium, the equilibrium will shift:

The IUPAC name for CH₃-CH₂-CHO is:

The rate constant of a reaction is 2.3 × 10⁻⁵ L mol⁻¹ s⁻¹. The order of reaction is:

The hybridization of carbon in ethyne (C₂H₂) is:

The number of atoms in 4.2 g of nitrogen gas (N₂) is:

Which subatomic particle is located in the nucleus of an atom?

The general formula for alkanes is:

 In a face-centered cubic lattice, a unit cell is shared by how many unit cells?

A substance that turns blue litmus paper red is:

The percentage of s-character in the hybrid orbitals of ethane, ethene, and ethyne follows the order:

The compound that gives a positive Tollens' test but negative Fehling's test is:

The E° value for the standard hydrogen electrode is assigned a value of:

The process used for the purification of copper is:

The reagent used to distinguish between aldehyde and ketone is:

In a face-centered cubic (FCC) crystal lattice, the number of atoms per unit cell is:

 The magnetic moment of [Fe(CN)₆]⁴⁻ is:

The number of isomers possible for C₄H₁₀O (alcohols) is:

The unit of molarity is:

In a chemical reaction, the substance that is completely consumed first is called the:

Which complex shows optical isomerism?

Which quantum number determines the shape of an orbital?

The compound that will undergo the Cannizzaro reaction is:

In the electrolysis of aqueous CuSO₄ using copper electrodes, the:

The pH of a neutral solution at 25°C is:

Which of the following is a noble gas?

 The number of σ and π bonds in CH₂=CH-C≡N are:

The mass of 2.24 L of CO₂ gas at STP is:

The half-life of a first-order reaction is 10 minutes. The time taken for the concentration of the reactant to decrease from 1.0 M to 0.125 M is:

Which halogen exists as a liquid at room temperature?

Which compound will exhibit geometrical isomerism?

The E° values for Fe³⁺/Fe²⁺ and I₂/I⁻ are +0.77 V and +0.54 V respectively. The feasibility of the reaction 2Fe³⁺ + 2I⁻ → 2Fe²⁺ + I₂ is:

According to the Kinetic Molecular Theory, the pressure of a gas is due to:

In the decomposition of KClO₃ to KCl and O₂, 0.1 moles of KClO₃ produces how many grams of O₂? (O=16)

The atomic number of an element is defined as the number of:

The shape of a methane (CH₄) molecule is:

 The symbol 'Na' represents the element:

Which of the following is an example of a covalent network solid?

The process used to convert vegetable oils into fats is:

The shape of a water molecule is:

The process by which a solid changes directly into vapor without passing through the liquid state is called:

The vertical columns in the periodic table are called:

A covalent bond is formed by the:

The oxidation state of sulfur in H₂SO₄ is:

 According to Boyle's law, at constant temperature:

 A buffer solution is prepared by mixing:

For a reaction: 2A + B → Products, when concentration of B is doubled, the rate doubles. When concentration of A is doubled, the rate becomes four times. The rate law is:

Which element shows the phenomenon of allotropy?

The boiling point of water at 700 mmHg pressure is:

The crystal field splitting energy (Δo) for an octahedral complex is:

In the electrochemical series, the standard electrode potential is measured relative to:

 The density of a gas is 2.0 g/L at 1 atm pressure and 27°C. Its molecular mass is:

Which of the following is a strong electrolyte?

The osmotic pressure of a 0.1 M solution of a non-electrolyte at 27°C (R=0.0821 L.atm/mol.K) is:

Which of the following has the highest boiling point?

The SI unit of pressure is:

The pH of 0.01 M CH₃COOH solution (Ka = 1.8 × 10⁻⁵) is approximately:

The Haber process is used for the industrial production of:

The standard enthalpy of formation (ΔH°f) for which of the following substances is zero?

Which salt solution has pH greater than 7?

The number of possible structural isomers for C₇H₁₆ is:

Which of the following is a homogeneous mixture?

In the reaction: Zn + 2HCl → ZnCl₂ + H₂, zinc acts as:

The number of π-bonds in benzene is

The bond angle in a water molecule is approximately:

 Which alcohol gives iodoform test?

The crystal structure of NaCl is:

The number of isomers possible for C₄H₈ (excluding stereoisomers) is:

The catalyst used in the Contact Process for sulfuric acid manufacture is:

In the electrolysis of molten NaCl, the product at the cathode is:

The chemical formula for water is:

The IUPAC name of CH₃-CH₂-CH(CH₃)-CHO is:

Which of the following has the highest boiling point?

The number of moles in 44 grams of CO₂ (C=12, O=16) is:

How many electrons can the first shell (K-shell) of an atom hold?

 Which hydrocarbon undergoes substitution reactions readily?

For a reaction, ΔG is negative. This means the reaction is:

 The mass of one mole of electrons is approximately:

The half-life of a first-order reaction is 10 minutes. The time required for the concentration to decrease from 0.1 M to 0.025 M is:

What is the charge on a proton?

 The chemical formula of gypsum is:

The order of reactivity of halogens in halogenation of alkanes is:

Which halogen is a liquid at room temperature?

The rate law for a reaction is found to be Rate = k [A]²[B]. If the concentration of A is doubled and B is halved, the rate of reaction will:

 Which of the following is a compound?

Which sub-shell has the lowest energy?

The complex ion [CoF₆]³⁻ is paramagnetic. The hybridization of cobalt in this complex is:

A compound contains 40% carbon, 6.7% hydrogen, and 53.3% oxygen. Its empirical formula is: