UNITED BOOK HOUSE-MODEL QUESTION PAPER 7-EXERCISE
- Which one causes Minamata
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- Calculate the number of atoms in 56u of He atom (Atomic mass of He = 4...
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- 1 amu = g.
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- Identify the s-block and p-block elements among the following elements...
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- Write the IUPAC name and symbol for the element with atomic number 119...
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- Classify the following system into open, closed or isolated : Hot tea ...
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- Identify 'X' in the figure.
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- Haemoglobin was found to contain- 0.335% iron (atomic weight of Fe = 5...
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- Show that if uncentainty in position and velocity are equal then uncer...
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- The shortest wavelength of H atom in Lyman series is x, then find the ...
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- Explain why PbCl4 is a good oxidising agent.
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- CO has both -oxidising and reducing property— explain.
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- What type of fission of a covalent bond products free radicals? Give a...
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- Write down the IUPAC name of the following compound:
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- Draw the structure of the following compound : 3, 4-dimethylpehtanoic ...
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- What is acid rain? How it effects on soil,vegetation and human health?
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- Why electronic energy is negative?
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- What do you understand by stationary state? Does an electron remain st...
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- Atomic radius of chlorine atom is0.99 overset@A but ionic radius of ch...
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- State the group number in the modern periodic table where solid, liqui...
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