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Calculate the normality of 1.11 gm of $CaC{l}_2$ is dissolved in 250 ml solution.

Match the reactions given in List I with the number of electrons lost or gained in List II

$\begin{array}{cccc}& Column-I& & Column-II\\ & Reaction& & Numberofelectronslostorgained\\ \left(P\right)& Mn(OH{)}_2+H_2{O}_2\to Mn{O}_2+2H_{2}O& \left(1\right)& 8\\ \left(Q\right)& AlC{l}_3+3K\to Al+3KCl& \left(2\right)& 2\\ \left(R\right)& 3Fe+4H_{2}O\to F{e}_3{O}_4+4H_2& \left(3\right)& 3\\ \left(S\right)& 3H_{2}S+2HN{O}_3\to 3S+2NO+4H_{2}O& \left(4\right)& 6\end{array}$

A solution of sucrose (molar mass = 342 g/mol) is prepared by dissolving 68.4 g of it per litre of the solution. What is its osmotic pressure (R = 0.082 lit. atm.k^-1mol^-1) at 273 K?

An ideal gas in a thermally insulated vessel at internal pressure$=P_1$, volume$=V_1$ and absolute temperature $=T_1$ expands irreversibly against zero external pressure as shown in the diagram. The final internal pressure, volume and absolute temperature of the gas are $P_2,V_2$ and $T_2$, respectively. For this expansion which of the following relation(s) holds true?

What is the final product $C$, of the following reaction sequence?

Electrolytic reduction of alumina to aluminium by Hall-Heroult process is carried out:

If one mole each of a monoatomic and diatomic gases are mixed at low temperature then $C_p/C_v$ ratio for the mixture is :

Arrange the following groups in the order of decreasing (-I) effect.

Find the total number of oxygen atoms in $5\times {10}^6$ formula units of the complex $\left[Co\right(H_{2}O{)}_6]C{l}_2.$

A balloon containing 1 mole air at 1 atm initially is filled further with air till pressure increases to 4 atm. The initial diameter of the balloon is 1 m and the pressure at each stage is proportion to diameter of the ballon. How many moles of air have to be added to change the pressure from 1 atm to 4 atm

Which halide is least stable and has doubtful existence ?

Which among the following plants can metobolise nitrogen oxides?

(1)Coconut (2) Pinus (3) Juniparus (4) Quereus

Balance the following equation by ion electron method:

$C{r}_2{O}_7^{2-}+C_2{H}_{4}O+H^{+}\to 2C{r}^{3+}+C_2{H}_4{O}_2+H_{2}O$

Which colorless gas evolves, when $N{H}_{4}Cl$ reacts with zinc in a dry cell battery

Calculate the number of oxygen atoms present in $88\text{g}$ of $C{O}_2$. What would be the mass of $CO$ that has the same number of oxygen atoms?

The solution of the differential equation $\frac{dy}{dx}=\frac{1+y^2}{1+x^2}$ is

[SCRA 1986]

Select the correct option(s) where aromatic product is/are formed.

The condition not satisfied by an ideal solution

Consider the reactions:



The final product contains the functional groups:

Dry cell has a small life time because of the corrosion of Zn container to form .

On reaction with hydroxylamine, aldehydes produce:

An acyclic hydrocarbon P, having molecular formula $C_6{H}_{10}$, gave acetone as the only organic product through the following sequence of reactions in which Q is an intermediate organic compound.

The structure of the compound Q is:

Which of the following elements has greater tendency to show +2 oxidation state ?

For a first order reaction, $A\left(g\right)\to 2B\left(g\right)+C\left(g\right)$, the rate constant in terms of initial pressure $P_0$ and pressure at time $t\left(P_t\right)$, is given by:

The dissociation energy of $C{H}_4$ is 400 Kcal $mo{l}^{-1}$ and that of ethane is 670 Kcal $mo{l}^{-1}$. The C - C bond energy is.

25ml of 3.0N HCl and 75ml of 0.05N HCl when mixed together, the normality of the resulting solution is

An electron makes a transition from $7^{th}$ excited state to $2^{nd}$ energy level in a $H$-atom sample. Find the maximum spectral lines observed.

Which one of the following statements is correct :

i) Brownian movement is more pronounced for smaller particles than for bigger ones

ii) Sols of metal sulphides are lyophilic

iii) Schulze-Hardey law states, the bigger the size of the ion, the greater is its coagulating power

iv) One would be expect charcoal to adsorb chlorine more strongly hydrogen sulphide

The product obtained in the reaction of diborane with excess of ammonia at low temperature is:

As a result of Millikan's oil drop experiment, value of electronic charge was found to be approximately equal to:

The units of rate and rate constant for a certain reaction are same. The order of reaction is:

Which among the following is the most reactive?

Which of the following pairs of ions is isoelectronic and isostructural ?

During isolation of fluorine, when $KH{F}_2$ is electrolysed then, is produced at the cathode and at the anode as the final product.

Which of the following is not a condensation polymer?

Read the following and select one the correct answer.

Statement I: Boron always forms covalent bond

Statement II: The small size of $B^{3+}$ favours formation of covalent bond

Wurtz reaction of methyl iodide yields an organic compound X. Which one of

the following reactions also yields X

[EAMCET 2003]

By passing a certain amount of charge through NaCl solution, 9.2 litre of Cl2 were liberated at S.T.P. When the same charge is passed through a nitrate solution of metal M, 7.467 g of the metal was deposited. If the specific heat of metal is 0.216 cal/g, what is formula of metal nitrate ?

Consider a sparingly soluble salt $\left(AB\right)$ with concentration $C_1$ and highly soluble salt $\left(AX\right)$ with concentration $C_2$. Then which of the following relation holds true?

(Assume $K_{sp}\left(AB\right)<<{10}^{-3}$)

Which of the following sets of properties constitute intensive properties?

Consider an indicator $HIn$. Find the change in $pH$ i.e. $\Delta pH$ of an acidic indicator when the ratio $\frac{\left[I{n}^{-}\right]}{\left[HIn\right]}$ changes from $0.2$ to $2$.

Given $K_{In}=1\times {10}^{-5}$

The Henry's law constant for the solubility of N₂ gas in water at 298K is 1.0 x 10⁵ atm. The mole fraction of N₂ is 0.8. The number of moles of N₂ from air dissolved in 10 moles of water at 298K and 5 atm pressure is

Hydration Energy of $M{g}^{2+}$ is lower than that of:

Which of the following is an example of rearrangement reaction?

Enzymes with two
sites are called [AIIMS 2002]