For the following questions answer them individually
Production of iron in blast furnace follows the following equation
Fe$$_3$$O$$_4$$(s) + 4CO(g) $$\rightarrow$$ 3Fe(l) + 4CO$$_2$$(g)
when 4.640 kg of Fe$$_3$$O$$_4$$ and 2.520 kg of CO are allowed to react then the amount of iron (in g) produced is:
[Given: Molar Atomic mass (g mol$$^{-1}$$): Fe = 56, O = 16, C = 12]
Which of the following statements are correct?
(A) The electronic configuration of Cr is [Ar] 3d$$^5$$4s$$^1$$.
(B) The magnetic quantum number may have a negative value.
(C) In the ground state of an atom, the orbitals are filled in order of their increasing energy order.
(D) The total number of nodes are given by n - 2.
Choose the most appropriate answer from the options given below.
The electronic configuration of Pt (atomic number 78) is
Arrange the following in the decreasing order of their covalent character:
(A) LiCl
(B) NaCl
(C) KCl
(D) CsCl
Choose the most appropriate answer from the options given below
The solubility of AgCl will be maximum in which of the following?
Which one of the following reactions indicates the reducing ability of hydrogen peroxide in basic medium?
Match List-I with Match List-II
List-I (Metal) Â Â Â Â Â Â Â List-II (Emitted light wavelength (nm))
(A) Li              (I)   670.8
(B) Na             (II)  589.2
(C) Rb             (III) 780.0
(D) Cs             (V)  455.5
Choose the most appropriate answer from the options given below
Match List-I with Match List-II
List-I (Metal)Â Â Â Â Â Â Â Â Â Â List-II (Application)
(A) Cs           (I)   High temperature thermometer
(B) Ga           (II)  Water repellent sprays
(C) BÂ Â Â Â Â Â Â Â Â Â Â Â (III)Â Â Photoelectric cells
(D) Si           (V)  Bullet proof vest
Choose the most appropriate answer from the options given below
Two isomers 'A' and 'B' with molecular formula C$$_4$$H$$_8$$ give different products on oxidation with KMnO$$_4$$ in acidic medium. Isomer 'A' on reaction with KMnO$$_4$$/H$$^+$$ results in effervescence of a gas and gives ketone. The compound 'A' is
The acid that is believed to be mainly responsible for the damage of Taj Mahal is