Nitric Acid

Q. The element which liberates oxygen gas from water is

1. F

2. P

3. Na

4. I

Q. The symbols of zepto and yocto prefixes are in small letters or big letters

Q. Nitric acid $\left(HN{O}_3\right),$ also known as aqua fortis (Latin for "strong water") or spirit of niter, is a highly corrosive mineral acid. Nitric acid reacts with most metals, but the details depend on the concentration of the acid and the nature of the metal.

List-I contains chemical reactions of metals with $HN{O}_3$ and List-II contains the compound(s) formed.

$\begin{array}{ccccc}& List-I& & List-II& \\ \left(I\right)& \text{Ca with dilute and cold}HN{O}_3& \left(P\right)& \text{Metal nitrate}& \\ \left(II\right)& \text{As with concentrated}HN{O}_3& \left(Q\right)& NO& \\ \left(III\right)& \text{Zn with dilute}HN{O}_3& \left(R\right)& N{O}_2& \\ \left(IV\right)& \text{Cu with dilute}HN{O}_3& \left(S\right)& N_{2}O& \\ & & \left(T\right)& \text{Tribasic acid}& \\ & & \left(U\right)& \text{Hydrogen gas}& \end{array}$

Which of the following options has the correct combination considering List-I and List-II?

1. $\left(I\right),\left(P\right)\left(S\right)and\left(II\right),\left(P\right)\left(Q\right)$
2. $\left(II\right),\left(R\right)\left(T\right)and\left(I\right),\left(P\right)\left(U\right)$
3. $\left(I\right),\left(P\right)\left(R\right)and\left(II\right),\left(P\right)\left(U\right)$
4. $\left(I\right),\left(S\right)\left(U\right)and\left(II\right),\left(Q\right)\left(T\right)$

Q. Which solubility order is correct some say a and some say b (a) Cscl >Licl >Rbcl> Nacl> Kcl (b) Cscl >Rbcl > Nacl> Kcl> Licl

Q. A solution saturated with sparingly soluble salts P+R- have the concentration of ions other than(given Ksp of PQ and QR are 3*10^16 and 1*10^-16 respectively) 1)2*10^-8 2)1*10^-8 3)1.5*10^-8 4)0.5*10^-8

Q. Which of the following is correct about lunar caustic?

1. When it is heated to its melting point, it decomposes to $Ag$, $N{O}_2$ and $O_2$
2. When it is heated till it gets red hot, it decomposes to $AgN{O}_2$ and $O_2$
3. It is prepared by reacting silver with nitric acid
4. When it is treated with $KI$ solution, it gives a yellow coloured compound which does not dissolve in $KCN$ solution

Q. Equal volume of N2 and H2 react to form ammonia under suitable condition then the limiting reagent is? How to solve?

Q. Sugarcane on reaction with nitric acid gives

1. $C{O}_2$ and $S{O}_2$
2. $(COOH{)}_2$
3. 2HCOOH (two moles)
4. no reaction

Q.

Match each of the reactions given in Column - I with the corresponding product(s) given in Column - II:
$\begin{array}{cc}Column-I& Column-II\\ \left(a\right)Cu+dil.HN{O}_3& \left(p\right)NO\\ \left(b\right)Cu+conc.HN{O}_3& \left(q\right)N{O}_2\\ \left(c\right)Zn+dil.HN{O}_3& \left(r\right)N_{2}O\\ \left(d\right)Zn+conc.HN{O}_3& \left(s\right)Cu(N{O}_3{)}_2\\ & \left(t\right)Zn(N{O}_3{)}_2\end{array}$

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Q. Which of the following reaction(s) will give brown coloured gas?

1. $Zn+\text{dil.}HN{O}_3$
2. $Cu+\text{dil.}HN{O}_3$
3. Both B and C
4. $Zn+\text{conc.}HN{O}_3$

Q. Match each of the reactions given in $ColumnI$ with the corresponding product(s) given in $ColumnII$.
$$\begin{array}{cccc}& ColumnI& & ColumnII\\ A.& Cu+dil.HN{O}_3& p.& NO\\ B.& Cu+conc.HN{O}_3& q.& N{O}_2\\ C.& Zn+dil.HN{O}_3& r.& N_{2}O\\ D.& Zn+conc.HN{O}_3& s.& Cu(N{O}_3{)}_2\\ & & t.& Zn(N{O}_3{)}_2\end{array}$$

1. A. $⟶$ r, s; B. $⟶$ q, s; C. $⟶$ p, t; D. $⟶$ q, t;
2. A. $⟶$ r, s; B. $⟶$ q, s; C. $⟶$ r, t; D. $⟶$ q, t;
3. A. $⟶$ p, s; B. $⟶$ q, s; C. $⟶$ p, t; D. $⟶$ q, t;
4. A. $⟶$ p, s; B. $⟶$ q, s; C. $⟶$ r, t; D. $⟶$ q, t;

Q. A solution of silver nitrate was stirred with iron rod. Will it cause any change in the concentration of silver and nitrate ions? E o Fe 2+/Fe = -0.44V ; E o Ag + /Ag = +0.80V

Q.

Nitric acid is produced by the

1. Hoopes proess

2. Leblanc process

3. Oswald’s process

4. Deacon process