Chemistry Reaction Kinetics

According to HESSES law, thermal effects of a reaction depends upon?

2-when ammonium chloride is dissolved in water, the solution becomes cold. The change is?

3-how much heat is liberated when 100ml of 0.1M NaOH are completely neutralized by 100ml of 0.1 MHCl?

4-BORN HEBER cycle is called

5-the atom X nd Y have the electronic configuration shown below
X. 1s2  2s2  2p6 3s2 3p6 3d10 4s2
Y.1s2 2s2 2p4
which of  the following components are they likely to form

6-which of the following moleculeshas zero dipole moment

7-ehich of the hydrogen halides has the highest percentage of ionic character

8-which of the following species has unpaires electrons in antibonding molecular orbital

9-the molecule with largest dipole moment

10-during formation of ionic bond between sodium and chlorine

11-the degree of polarity of molecule is called

12-VESPER theory explains

13-which theory explains that pair of electrons around the central atom lie at maximum distance so they experience minimum repulsion

14- in sp2 hybridises orbital the s character is

15-which one has expected to have highest bond energy

16- in a sigma bond formed between two hydrogen atoms, the electron cloud will be dense

17-chemical bond formation takes place when

18-which change would have  negative DELTA H value

19- DELTA H and DELTA E are same when the system under study is

20- if you have two different polar diatomic molecules,their dipole moment will be

21-which has two pi bonds

22-which of the following has the covalent bond

23-structure of ammonia molecule is

24-chlorine atom gains the electrons in its valence shell because of its high

25-dipole moments are measured in

26-Which of the following has the greater bond distance

27-an atom of an element consist of 5 protons, neutrons,2k electrons and 3 L Electrons.the mass num of this atom is

28-the num of orbitals t\in d subshell is

29- valence bond theory is unable to explain