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The valence shell of carbon contains?

The emf of the given cell is $0.788\text{V}$ at ${25}^{\circ }\text{C}.$

$Ag|AgI\text{in}KI\left(0.05\text{M}\right)||AgN{O}_3\left(0.05\text{M}\right)|Ag$



Calculate the value of solubility product of $AgI$ at ${25}^{\circ }\text{C}$



Take:

${10}^{-14.63}\approx 2.34\times {10}^{-15}$

Which of the following statement is not correct for the element having electronic configuration $1s^{2}2s^{2}2p^{6}3s^1$?

Match the type of coal with its carbon content.

$\begin{array}{cccc}& \text{Column-1}& & \text{Column-II}\\ \text{A.}& \text{Peat}& \text{P.}& \text{94\%}\\ \text{B.}& \text{Lignite}& \text{Q.}& \text{83\%}\\ \text{C.}& \text{Anthracite}& \text{R.}& \text{67\%}\\ \text{D.}& \text{Bituminous}& \text{S.}& \text{57\%}\end{array}$

Which of the following properties in metals are caused by metallic bonding?

Methane gas $\left({\text{CH}}_4\right)$ when burns with oxygen $\left({\text{O}}_2\right)$ gives carbon dioxide and water. Write the balanced chemical equation and provide the following information in terms of reactants and products in the equation. [5 Marks]



(a) no. of molecules

(b) no. of moles

(c) molar mass

(d) total mass of reactants and products

What does statement (d) infer?

Correct order of basic strength of the given oxides is:

Give the full form of NAA.

Which of the following belong to a homologous series?

1. $HCOOH$

2. $C{H}_{3}COOH$

3. $C_2{H}_6$

4. $C_2{H}_{5}COOH$

5. $C_3{H}_6$

The four quantum numbers for the valence shell electron of sodium (Z = 11) is ___________.

Give chemical equation(s) to prove that $N{H}_3$ contains nitrogen and hydrogen ?

To which of the following salts, sodium hydroxide when added gives a precipitate?

Which of the following is commonly known as gypsum?

Carboxylic acids are:

Name the substance oxidized in the following reaction:

$S{O}_2+2H_{2}S$ $\to$ $2H_{2}O+3S$

Question 08.
Which of the following gives the correct increasing order of acid strength?
(a) Water < Acetic Acid< Hydrochloric Acid
(b) Water < Hydrochloric Acid < Acetic Acid
(c) Acetic Acid < Water < Hydrochloric Acid
(d) Hydrochloric Acid < Water < Acetic Acid

Write the balanced chemical equations for the following conversions:

(a) Lead sulphate from lead nitrate solution and dilute sulphuric acid.

(b) Copper sulphate from copper and concentrated sulphuric acid

(c) Ammonium sulphate from ammonia and dilute sulphuric acid.

Give examples of compounds whose

(a) empirical formula is the same as the molecular formula.

(b) empirical formula is different from the molecular formula.

Which among the following gases burn with a pop sound?

The relative molecular mass of CHCl₂ is 168, so what is its molecular formula?

The standard reduction potential values of three metallic cations x, y, z are 0.52, -3.03 and -1.18V respectively.The order of reducing power of the corresponding metals is