Werner's Coordination Theory

Q. A 400 mg iron capsule contains 100 mg of ferrous fumarate, (CHCOO)2 Fe. The percentage of iron present in it is approximately. A) 33% B) 25% C) 14% D) 8%

Q. Find empirical formula of 4g calcium , 6.022 × 10^{23} atoms carbon, 4.8 g oxygen

Q. 20.The n-factor of M0.25O in the reaction, M0.25O------------àMO is- (1) 1.5 (2) 4.5 (3) 3 (4 2.5

Q.

Write the formulae for the following.
Sodium Carbonate

Q.

Formula of sodium carbonate is ________and that of ammonium sulphate is________.

Q. Is B2 ( di-boron) a paramagnetic or diamagnetic species ? But if we consider the electronic configuration, the ninth electron would enter the pi- 2px and pi-2py , orbitals, then why we say that it is diamagnetic ?

Q.

Primary and secondary valency of $Pt$ in $\left[Pt\right(en{)}_{2}C{l}_2]$ are

1. 4, 4

2. 4, 6

3. 6, 4

4. 2, 6

Q. As per postulates of Werner's theory for coordination compound

1. Primary valency is ionizable
2. Secondary valency is ionizable
3. Both primary and secondary valencies are non-ionizable
4. Only primary valency is non ionizable

Q. if x gram of a metal sulphate on heating gives y gram metal oxide , then relation between x, y, equivalent mass

Q. 47. For the reaction, P 3Q2R + SInitial moles of P is thrice to that of Q. If atequilibrium moles of Q and R are equal, then thepercent of Q reacted is(1) 10%(3) 40%(2) 20%(4) 60%

Q.

Anelectron is in one of the 3d orbitals. Give the possible values of n, l and m_l for this electron.

Q. 6 : 6 coordination number of $NaCl$ changes to 8 : 8 coordination on:

1. applying high pressure
2. no effect on coordination
3. both (A) and (B)
4. increase in temperature

Q. 6 : 6 coordination number of $NaCl$ changes to 8 : 8 coordination on:

1. increase in temperature
2. both (A) and (B)
3. no effect on coordination
4. applying high pressure

Q. How many moles of lead (I) chloride will be formedfrom a reaction between 6.5g of PbO and 3.2 g ofHCI?0.029(3) 0.333AIPMT (Prélms)-2008\rbrack(2) 0.044(4) 0.011

Q.

Cobalt (III) chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at ${25}^{\circ }$?

1. $CoC{l}_3.3N{H}_3$

2. $CoC{l}_3.4N{H}_3$

3. $CoC{l}_3.5N{H}_3$

4. $CoC{l}_3.6N{H}_3$

Q. number of moles of nitrogen atom in 56 grams nitrogen gas

Q. One mole of the complex with molecular formula $\left[Co\right(N{H}_3{)}_{5}C{l}_3]$ gives two moles of $AgCl$ with excess of $AgN{O}_3$. The complex is

1. $\left[Co\right(N{H}_3{)}_{4}C{l}_2]Cl$
   
2. $\left[Co\right(N{H}_3{)}_{3}C{l}_3].2N{H}_3$
3. $\left[Co\right(N{H}_3{)}_{4}Cl]C{l}_2.N{H}_3$
   
4. $\left[Co\right(N{H}_3{)}_{5}Cl]C{l}_2$

Q. compound made of elementsA&B of atomic mass 56 and 16. formula of compound is

Q. An aqueous solution of $CoC{l}_3.6N{H}_3$ on mixing with $AgN{O}_3$ produces $3$ moles of a white precipitate. Primary and secondary valency of the metal in this complex is:

1. $3,6$
2. $2,6$
3. $3,3$
4. $6,4$

Q.

Cobalt (III) chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at ${25}^{\circ }$?

1. $CoC{l}_3.3N{H}_3$

2. $CoC{l}_3.4N{H}_3$

3. $CoC{l}_3.5N{H}_3$

4. $CoC{l}_3.6N{H}_3$

Q. the first four ionisation energy values of an element are 191, 578, 872 and 5962 kcal. the no. of valence electron in the element is 1. 1 2. 2 3. 3 4. 4

Q.

Predict which of the formulae are not correct for the given compounds: Correct the wrong ones.
Silver sulphide : $\mathrm{AgS}$

Q. Which of the following is the correct order for solubility in water?

1. $NaSi{O}_4<KCl{O}_4$
2. $NaB{F}_4<NaF$
3. $MgS{O}_4<SrS{O}_4$
4. All of the above

Q. The solution of the complex tetraamminecopper (II) sulphate in water

1. Will give the tests of $C{u}^{2+}$ ions
2. Will give the tests of $N{H}_3$
3. Will give the tests of $S{O}_4^{-2}$ ions
4. Will not give any test of the above species

Q. In this reaction, 2Al+3/2O2----> Al2O3, 9grams of Al will react, with