1. Translate this word into Russian: MATTER:

1. What gas is evolved when dilute sulphuric acid is added to Zinc:

Translate this word into Russian: CHEMISTRY:

Acids change litmus paper from:

Translate this word into Russian: SCIENCE:

Which of the following gases is green in color:

Translate this word into Russian: COMPOUND:

Translate this phrase into Russian: ENERGY CHANGES:

The lead of a pencil mainly contains:

The theory of … reactions is a major discovery of our time:

Much of the work of the biochemist is concerned with… and medicines:

Diamagnetic substances are … by a magnetic field:

… is the process whereby electrical energy causes a chemical change in the conducting medium:

Electrolysis is generally used as a method of deposition of metals from a ….:

There are more than 30 different… of chemistry:

Zelinsky’s works formed the basis for the synthesizing of a large number of new chemical…:

Scientists are making a major contribution to … of aniline dyes:

Choose physical process:

Diamagnetic substances have no … electrons:

Choose compound with covalent polar bond:

In which compound can you find at least one covalent nonpolar bond:

Choose phosphorus-containing compound:

Choose binary compound with ionic bond:

Choose compound:

Choose oxygen-containing compound:

Which compound is composed of three atoms:

Translate this word into Russian: FIELD:

Choose pure chemical element:

On going from right to left in a period in the periodic table, the electronegativity of the elements:

Translate this phrase into Russian: NUCLEAR CHEMISTRY:

Going from fluorine to chlorine, bromine, and iodine, the electronegativity:

Of the following elements, which one has the highest electronegativity:

Select the correct charge of nitrogen in NH3:

Select the correct charge of nitrogen in HNO2:

The compound which could not act both as oxidizing as well as reducing agent is:

Select the correct charge of nitrogen in NO2:

Select the correct charge of nitrogen in N2O5:

The oxidation number of sulphur in H2S2O7 and iron in K4Fe(CN)6 is respectively:

M^+3 ion loses 3e^-. Its oxidation number will be:

The oxidation number of sulphur in S8, S2F2, H2S respectively, are:

Amongst the following, identify the species with an atom in +6 oxidation state:

In the equation,

H2S+2HNO3–>2H2O+2NO2+S

the equivalent weight of hydrogen sulphide is

When MnO2 is fused with KOH, a coloured compound is formed; the product and its colour is:

The metal used in galvanizing iron is:

Prevention of corrosion of iron by zinc coating is called:

Which one of the following nitrates will leave behind a metal on strong heating:

The free energy change for a reversible reaction at equilibrium is:

In which of the following reactions is there no change in valency:

To prevent rancidification of food material, which of the following is added:

Find the correct name of BCl3:

Find the correct name of LiCl:

Find the correct name of N2O4:

Find the correct name of MgBr2:

Find the correct name of NaCl: