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Water is heated from $0^{\circ }Cto{10}^{\circ }C$, then its volume

For isothermal process, if heat added is $Q$ & work done by gas is $w$, then

Match the following:
$\begin{array}{cc}ColumnI& ColumnII\\ 1.Diamond& i.Crystalline\\ 2.Coke& ii.Amorphous\\ 3.Rubber& \\ 4.Plastic& \end{array}$

What role does adsorption play in heterogeneous catalysis ?

A heat engine is operating between $500K$ to $400K$. If the engine absorbs $100J$ heat, then which of the following is impossible amount of heat rejected by the engine?

The strength of the acid is dependent upon which of the following conditions? Choose the right option from the given choices.

For the reaction:
$A\left(g\right)+B\left(g\right)\to C\left(g\right)$
At STP, 150 g of gas $A$ reacts with 56 L of gas B and produces gas C, which is diatomic. Calculate the number of atoms in C.
(Molar mass of A = 60 g/mol, $N_A$ is Avogadro's number )

Significance of octet rule

In an insulated container 1 mole of liquid, molar volume 100 ml is kept at 1 bar. Liquid is steeply taken to 100 bar, when volume of the liquid decreases by 1 ml. what are the values of $\Delta H$ & $\Delta U$ for the process?

WHY CARBON FORMS COVALENT BONDS IN ORGANIC COMPOUNDS

Question 23

Show the distribution of electrons in oxygen atom (atomic number 8) using orbital diagram.

Intra-molecular H-bonding is present in

The electrons, identified by quantum number n and l,
(i) n = 4, l = 1(ii) n = 4, l = 0(iii) n = 3, l = 2 and (iv) n = 3, l = 1
Can be placed in order of increasing energy, from lowest to highest as

The KE of 1 kg of oxygen at 300K is 1.356 * 10⁶J . Find the KE of 4kg of oxygen at 400K

Identify the type of polymer given in the following figure.

calculate the mole fracton of benzene ina solution containing 30% by mass of it in carbon tetrachloride

Which among the following are isoelectronic $N{O}_3^{-},C{O}_3^{2-},Cl{O}_3^{-},S{O}_2$

Dacron is an example of

That the mode of DNA replication is semiconservative was demonstrated by

The order of ionization enthalpy for B, Al and Ga is:

Drugs which helps to reduce anxiety and brings about calmness are known as:

Why do elements in the same group have similar physical and chemical properties?

Preparation of glycine by Strecker synthesis involves as one of the starting compounds ?

Complete hydrolysis of cellulose gives [AIEEE 2003]

Which of the following dienes would be the most stable?

Which one of the following does not decolourize an acidified $KMn{O}_4$ solution.

The no. of Ring or cyclic Isomers for (pent - 1 - yne), excluding stereoisom is __

In which of the following $3C-2e^{-}$ bonds are present.

The bond angle in water molecule is nearly or Directed bonds in water forms an angle of

Two solutions A and B are separated by semi- permeable membrane. If liquid flows form A to B then

In the following compounds, the decreasing order of acidity is

ionic species having largest size:

A. Li+(g)

B.Na+ (aq)

C. Rb+(aq)

D. Li+(aq)

20 ml of 0.001M $AgN{O}_3$ solution is added to one litre of 0.002M $K_{2}Cr{O}_4$ solution. Calculate the Ionic product.
$K_{sp}ofA{g}_{2}Cr{O}_4=2.4\times {10}^{-12}$

How many hydroxyl groups present in $\alpha -D(-)$ fructofuranose ?

Which ion will show more paramagnetic behaviour ?

In a cubic structure of compound which is made from X andY, where X atoms are at the corners of the cube andY at the face centres of the cube. The molecular formula of the compound is

What is the difference between transition and d block element😢😢😢

If the number of atoms per unit in a crystal is 2, the structure of crystal is

A solid is made of two elements P&Q. Atoms P are in ccp arrangement and atoms Q occupy all the octahedral voids and half of the tetrahedral voids, then the simplest formula of the compound is

The number of moles of oxygen in one litre of air containing 21% oxygen by volume, under standard conditions are:

Which of the following volume (V) temperature (T) plots represents the behaviour of one mole of an ideal gas at the atmosphere pressure?