Ammonia

Q. $\times {10}^{24}$ hydrogen atoms are present in $18$ gms of water.

Q. 42 A compound of molecular weight 180 gm is acetylated to give a compound of molecular wt. 390 the number of amino group in the compound are (1)2 (2) 4 (3) 6 (4) 5

Q. water is oxide of hydrogen explain. water is amphoteric or neutral

Q.

Which is more soluble? $LiF$ or $KF$

1. 

2. 

3. Same

4. Data Insufficient

Q.

Which of the following have both polar and non-polar bonds

1. NH₄Cl

2. HCl

3. AlCl₃

4. C₂H₆

Q. Amount of silver chloride precipitated, when 100 ml 0.1M AgNO3 was added to 200ml 0.05M NaCL solution, is

Q.

A mixture of nitrogen and water vapours is admitted to a flask at 760 torr which contains a sufficient solid drying agent after long time the pressure reached a steady value of 722 torr. If the experiment is done at 27${}^{\circ }$ C and drying agent increases in weight by 0.9 gm, what is the volume of the flask? Neglect any possible vapour pressure of drying agent and volume occupied by drying agent.

1. 24.63 L

2. 443.34 L

3. 246.3 L

4. 12.315 L

Q. 17 How many oxygen atoms are required to form ozonide from benzene ? With proper explanation

Q. an hexagonal close packaging crystal lattice has 1)same coordination number as of simple primitive 2)same type of voids as of body centerrd cubic lattice 3)same ratio of atoms and voids as of face centered cubic lattice 4)all of the

Q.

For electron affinity of halogens which of the following is correct

1. Br>F

2. F>Cl

3. F>I

4. Br>Cl

Q. $N{H}_3$ can be obtained by

1. Heating $N{H}_{4}N{O}_2$
2. Heating $N{H}_{4}Cl$
3. Heating $N{H}_{4}N{O}_2$ with $NaOH$
4. The reaction of $AlN$ with $H_{2}O$

Q.

Why is BeO amphoteric in nature?

Q. Is their any relation, that if in any Lewis structure, octet rule is not valid then coordinate bonding will be absent. And if their is octet rule is valid then coordinate bonding will be present.

Q. Ammonia is soluble in water because it forms hydrogen bonds with water.

1. True
2. False

Q. How to count no of resonating structure in cyclic compound

Q.

Which one is the most basic in aqueous solution?

1. Ammonia

2. Methanamine

3. Dimethylamine

4. Trimethylamine