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UNITED BOOK HOUSE-MODEL QUESTION PAPER 6-EXERCISE
- 1eV = How much Joule? What do you understand by the term isostere?
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- It the energy of 1st Bohr orbit be 13.6eV of a hydrogen atom, then cal...
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- Why the melting point of Boron is so high? State one use of Boron Carb...
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- Why the phenolphthalein turns pink in borax solution? Why it becomes c...
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- Why Na Is taken in excess in Lassigne's test?
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- What is TLV? Write one harmful effect of PAN?
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- Write two difference between orbit anoorbital. What difference will be...
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- Calculate wavelength of a photon having energy 1.2 ev. (1 ev = 1.601 x...
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- What in inner transition metal? Give one example of inert pair effect.
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- Define ionisation potential. State its change down a group.
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- How many sigma & pi bonds are there in propene molecule. State the hyb...
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- Dipole moment and bond length of A B type molecule are 7.42 D 2.04 ove...
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- State Grahams law of difussion from kinetic theory of gases. What do y...
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- Why the froth formed from Sea water is stable? Give the SI unit of Co-...
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- Discuss the conditions for spontaneity of a process .
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- Classify system. Give example of each kind.
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- Balance the equation by ion-electron method : Zn+ NaNO(3) + NaOH to...
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- Balance the equation by oxidation Number method: FeS2 + O2 rarr Fe2O3 ...
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- Discuss Clark process for softening water.
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- Why K & Cs is used in photocell instead Li? Find oxidation number for ...
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