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Q:

The hard Shell of an egg was dissolved in HCL. The egg was then placed in a concentration solution of NaCl. What will happens ______

A) The egg will shrink B) The egg will swell
C) The egg will become harder D) There will be hardly any visible change
 
Answer & Explanation Answer: A) The egg will shrink

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Q:

Modern periodic table is based on atomic number of the elements. The significance of atomic number was proved by the experiment of ________

A) Moseley's work on X-ray spectra B) Bragg's work on X-ray diffraction
C) Mulliken's oil drop experiment D) Discovery of X-ray by Roentgen
 
Answer & Explanation Answer: A) Moseley's work on X-ray spectra

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Q:

"If a system A is in thermal equilibrium with B and B is in thermal equilibrium with C, then A and C are in equilibrium with each other". This is a statement of 

A) Cyclic rute B) Zeroth law of thermodynamics
C) First law of thermodynamics D) Second law of thermodynamics
 
Answer & Explanation Answer: B) Zeroth law of thermodynamics

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Q:

TEL minimise the knocking effect when mixed with petrol, it acts as_______

A) Positive catalyst B) Negative catalyst
C) Auto catalyst D) Induced catalyst
 
Answer & Explanation Answer: B) Negative catalyst

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Q:

Van der Waal's equation explains the behaviour of _____

A) Ideal gases B) Real gases
C) Mixture of gases D) Diatomic gases
 
Answer & Explanation Answer: B) Real gases

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Q:

Of the following elements, which one has the same oxidation  state in all of its compounds?

A) Hydrogen B) Fluroine
C) Carbon D) oxygen
 
Answer & Explanation Answer: B) Fluroine

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Q:

A bond formed by the transfer of electrons between atoms of the elements is called

A) Ionic bond B) Covalent bond
C) Co-ordinate bond D) Hydrogen bond
 
Answer & Explanation Answer: A) Ionic bond

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Q:

The difference between a nuclear reactor and atomic bomb is that ___________

A) no chain reaction takes place in nuclear reactor while in the atomic bomb there is a chain reaction B) the chain reaction in nuclear reactor is controlled
C) the chain reaction in nuclear reactor is not controlled D) no-chain reaction takes place in atomic bomb while it takes place in nuclear reactor
 
Answer & Explanation Answer: B) the chain reaction in nuclear reactor is controlled

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