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This Test Contains Questions from Chapter Chemistry Reaction Kinetics..
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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
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