Chemistry Mock Test-9

If in a container no mass and no heat exchange occurs then it constitutes a

Which of the following is always feasible

Arrange the following in increasing order of acidity H₃PO₄ , H₂CO₃ , HCl , HI

If 0.1 M of a weak acid is taken, and its percentage of degree of ionization is 1.34%, then calculate its ionization constant.

The oxidation numbers of hydrogen in KH,MgH₂ and NaH are respectively

The oxidation states of sulphur in the anions : SO₃²⁻,S₂O₄²⁻ and S₂O₆²⁻ follow the order

The product obtained on fusion of BaSO₄ and Na₂CO₃ is

Identify the correct statement:

Two chemicals having same chemical formula but different arrangement of atoms are called

A compound with empirical formula CH₂O has a vapour density of 30.Its molecular formula is

The constituent of light oil is

Which of the following has the highest boiling point

Cation and anion combines in a crystal to form following types of compound

Which one of the following compounds exhibit both schottky and frenkel defects

Equivalent conductances of Ba²⁺ and Cl⁻ ions are 127 and 76 ohm⁻¹ cm⁻¹ eq⁻¹ respectively. Equivalent conductance of BaCl₂ at infinite dilution is

The standard electrode potential is measured by

Among the following sols the one which is hydrophobic is

In the case of auto catalysis

Nitrous oxide is known as

Which of the following displaces Br₂ from an aqueous solution containing bromide ions

Among the following pairs of ions, the lower oxidation state in aqueous solution is more stable than the other in

The number of moles of KMnO₄ reduced by one mole of KI in alkaline medium is

An aqueous solution of CoCl₂ on addition of excess of concentrated HCl turns blue due to formation of

Which of the following does not have a metal-carbon bond

Which one will give positive iodoform test

Alkyl halides react with metallic sodium in the presence of anhydrous ether is

Intermolecular hydrogen bonding is strongest in

In the manufacture of ethanol from starch by fermentation, the following enzyme has no role to play

Benzaldehyde can be prepared by the hydrolysis of

Which of the following reactions will not result in the formation of carbon-carbon bonds

The reaction of primary amine with chloroform and ethanolic KOH, is called

An isocyanide on hydrolysis gives

Number of chiral carbon in β-D-(+) glucose is

Mutarotation does not occur in

preservative among the following is

If pressure is constant, the rate of diffusion varies with … proportional to density

By what factor does the average velocity of a gaseous molecule increase when the temperature (in K) is doubled

What is the number of mols of hydrogen atoms in 3.2g of methane

Which is purified by steam distillation

The orientation of an atomic orbital is governed by

According to Dalton’s atomic theory the smallest partical of the matter is called

The electronic configuration of chalcogens is

Element having maximum electron affinity is

Sulphur ion is

The bond length in LiF will be