Home⇒ Everyday Science GK⇒ Chemistry
| Note:- You can add tough questions into your favourite list for second revision. |
| Q1 ⇒ The heat required to raise the temperature of body by 1 K is called thermal capacity [other wrong options] [Discuss in forum] |
| Q2 ⇒ The molecules of which gas have highest speed? H2 at -73oC [other wrong options] [Discuss in forum] |
| Q3 ⇒ The high reactivity of fluorine is due to its high electro negativity [other wrong options] [Discuss in forum] |
| Q4 ⇒ The main active constituent of tea and coffee is caffeine [other wrong options] [Discuss in forum] |
| Q5 ⇒ The ionic radii of N, O, Fand Nafollows the order N3- > O2- > F- > Na+ [other wrong options] [Discuss in forum] |
| Q6 ⇒ The number of waves made by an electron moving in an orbit having maximum magnetic quantum number is +3 4 [other wrong options] [Discuss in forum] |
| Q7 ⇒ The oil used in the froth floatation process is pine oil [other wrong options] [Discuss in forum] |
| Q8 ⇒ The inherited traits of an organism are controlled by DNA molecules [other wrong options] [Discuss in forum] |
| Q9 ⇒ The nuclear particles which are assumed to hold the nucleons together are mesons [other wrong options] [Discuss in forum] |
| Q10 ⇒ The maximum number of isomers for an alkene with molecular formula CHis 4 [other wrong options] [Discuss in forum] |
| Q11 ⇒ The iron ore magnetite consists of Fe2O3 [other wrong options] [Discuss in forum] |
| Q12 ⇒ The graphite rods in the nuclear reactor convert fast moving neutrons into thermal neutrons [other wrong options] [Discuss in forum] |
| Q13 ⇒ The oldest rocks in the earth's crust were once molten, and came from deep inside the earth. The molten rock, called magma, spewed out in volcanic eruptions during the earth;s early life and solidified into hard rock's called igneous rocks [other wrong options] [Discuss in forum] |
| Q14 ⇒ The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in 12 moles of KMnO4 [other wrong options] [Discuss in forum] |
| Q15 ⇒ The number of waves in n x 10Bohr's orbit are n [other wrong options] [Discuss in forum] |
| Q16 ⇒ The nucleus of an atom consists of protons and neutrons [other wrong options] [Discuss in forum] |
| Q17 ⇒ The heat energy produced when the human body metabolises 1 gram of fat is 39 KJ [other wrong options] [Discuss in forum] |
| Q18 ⇒ The hardest form of carbon is diamond [other wrong options] [Discuss in forum] |
| Q19 ⇒ The National Chemical Laboratory is situated in Pune [other wrong options] [Discuss in forum] |
| Q20 ⇒ The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2orbit to 3orbit is 5x/36 [other wrong options] [Discuss in forum] |
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