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Atomicity of a molecule depends on the ___.

atoms a b c d are located at corners face centres,body centres and edge centres respectively in a cubic unit cell.If the atoms touching one of the rectangular planes of symmetry and one of the 4-fold axis of symmetry are removed,then formula of compund is ?

In the modern periodic table, the elements are arranged on the basis of their increasing:

Which compound is formed on the surface of silver by the action of corrosion?

Match the correct option

When a compound X is dissolved in water, it dissociates as shown below:

$X\to A$ + $O{H}^{-}$

Here X is:

Is matter continous or particulate?

What are indicators? What are they used for? Give some examples of naturally occurring indicators.

Calculate the reduction potential for the following half cell at $25{}^{o}C$.



$Cu\left(s\right)|C{u}^{2+}(aq,0.2M);E_{C{u}^{2+}/Cu}^0=0.34V$



Take :

[$lo{g}_{10}5=0.7$]

Match the following:

$\begin{array}{cccc}\text{(i)}& \text{Can have variable composition of constituent elements}& \text{(A)}& \text{Compound}\\ \text{(ii)}& \text{\_\_\_\_\_\_\_\_is new substance formed due to reaction of two constituent elements}& \text{(B)}& \text{Mixture}\\ \text{(iii)}& \text{Constituent elements can be separated easily}& \text{(C)}& \text{Element}\\ \text{(iv)}& \text{Can be separated only by chemical or electrochemical reactions}& & \\ \text{(v)}& \text{Composition is always fixed}& & \\ \text{(vi)}& \text{Shows properties of constituent elements}& & \end{array}$ The correct pairs are:-

An unbalanced equation is known as a ___ equation.

Various types of coals are obtained from mining. Name the type of coal which has the highest carbon content.

Identify the beaker that contains a mixture of vinegar and china rose indicator.

A non-metal which conducts electricity among the following is:

Which of the following equations does not follow the law of conservation of mass?

Question 3

(a) What is the cause for the yellowing of the Taj Mahal?

(b) Will Acid rain help in the growth of crops?

What do you understand by soil treatment? [5 MARKS]

What are monoatomic and diatomic elements? I

The electrode with reaction

$C{r}_2{O}_7^{2-}\left(aq\right)+14H^{+}\left(aq\right)+6e^{-}\to 2C{r}^{3+}\left(aq\right)+7H_{2}O\left(l\right)$

can be represented as:

[If needed, use platinum as an inert electrode]

Atomicity not explained in atomic structure chapter by Byju. So concept uncleared

Which one of the following is a double displacement reaction?

Flames of different substances __________ colours.

Select the change in which chemical properties does not change.

Which of the following statement is not true for a base?

Which following fibre is an example of natural fibres?

Marwari breed of sheep yields

Question 31

Rivers from land, add minerals to sea water. Discuss how.

Question 11

Calculate the number of aluminium ions present in 0.051 g of aluminium oxide.