Karnataka CET- 2013(Chemistry)

Temperature coefficient of a reaction is ‘2’. When temperature is increased from 30 ^oC to 90 ^oC, the rate of reaction is increased by

An example for a neutral buffer is

The number of optical isomers of the compound CH₃ – CHBr – CHBr – COOH is

Empirical formula of a compound if CH₂O and its molecular mass is 90, the molecular formula of the compound is

Hybridised states of carbon in Graphite and Diamond are respectively

Which one of the following shows highest magnetic moment?

Which of the following is employed in flash tubes in photography?

Oils are liquids at room temperature since they contain higher percentage of

The number of water molecules present in a drop of eater weighing 0.018 gm is

Which of the following gases has the highest value of RMS-velocity at 298 K?

Glucose when reduced with HI and Red Phosphorus gives

Which of the following aqueous solutions will exhibit highest boiling point?

Acetone and propanal are

Conversation of benzene to acetophenone can be brought by

Mesomeric effect involves

An alkyl bromide (X) reacts with Sodium in ether to form 4, 5-diethyl octane, the compound ‘X’ is

The number of disulphide linkages present in Insulin are

Methane can be converted into Ethane by the reactions

d²sp³ hybridisation of the atomic orbitals gives

Metallic lustre is due to

Given Thermochemical equation, 2H_2(g) + O_2(g) → 2H₂O_(l) ; ∆H = -571.6 kJ. Heat of decomposition of water is

The stability of a Lyophobic colloid is due to

The electronic configuration of Cu²⁺ ion is

In face centred cubic lattice, a unit cell is shared equally by how many unit cells?

In the reaction, 2FeSO₄ + H₂SO₄ + H₂O₂ → Fe₂(SO₄)₃ + 2H₂O, the oxidizing agent is

If 50% of the reactant is converted into a product in a first order reaction in 25 minutes, how much of it would react in 100 minutes?

The pH of 10^-8M HCl solution is

3 gms of urea is dissolved in 45 gms of H₂ The relative lowering in vapour pressure is

The rate of reaction increases with rise in temperature because of

Which one of the following gives amine on heating with amide?

When formic acid is heated with concentrated H₂SO₄, the gas evolved is

When limestone is heated, CO₂ is given off. The metallurgical operation is

Cycloalkane formed when 1, 4-dibromopentane is heated with Sodium is

Identify a species which is ‘NOT’ a Bronsted acid but a Lewis acid.

The process of zone refining is used in the purification of

The process is spontaneous at the given temperature, if

Which of the following is strongly acidic?

IUPAC name of CH₃ – CH(OH) – CH₂ – CH(COOH) – CH₃ is

The compound formed when calcium acetate and calcium formate is dry distilled

The reagent used to distinguish between acetaldehyde and benzaldehyde is

Adsorption theory is applicable for

The emf of a galvanic cell constituted with the electrodes Zn²⁺ ǀ Zn (-0.76 V) and Fe⁺² ǀ Fe(-0.41 V) is

Which of the following pairs are correctly matched ? (Reactants : Products)

1. RX + AgOH_(aq) : RH
2. RX + AgCN_(Alco) : RNC
3. RX + KCN_(alco) : RNC
4. RX + Na_(ether) : R – R

Which one of the following sets of ions represents the collection of isoelectronic species?

Conjugate base of H₂PO₄^–

Which of the following cations will have minimum flocculation value for arsenic sulphide sol ?

Excess of PCl₅ reacts with concentrated H₂SO₄ giving

In a transition series, with the increase in atomic-number, the paramagnetism

The yield of the products in the reaction, A_2(g) + 2B_(g) ⇌ C_(g) + Q. kJ would be higher at

The value of entropy of solar system is

Intra-molecular Hydrogen bonding is formed in

Alkali metals have negative reduction potential and hence they behave as

The mass of 112 cm³ of NH₃ gas at STP is

In Buna-S, the Symbol ‘Bu’ stands for

Which of the following is diamagnetic?

Meso compounds do not show optical activity because

A group of atoms can function as a ligand only when