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In a Borax bead test, which compound is formed?
Identify the correct relationship of stability from the options provided:
Match List-I (Molecules) with List-II (Shapes): List-I: (a) $PCl_5$ (b) $SF_6$ (c) $BrF_5$ (d) $BF_3$ List-II: (i) Square pyramidal (ii) Trigonal planar (iii) Octahedral (iv) Trigonal bipyramidal Choose the correct answer from the options given below:
What is the correct relationship between changes in enthalpy and internal energy within the following options?
Which of the following ions have the same 'spin-only' magnetic moment? A. $Ti^{3+}$ B. $Cr^{2+}$ C. $Mn^{2+}$ D. $Fe^{2+}$ E. $Sc^{3+}$ Choose the most appropriate answer from the options given below:
The most characteristic oxidation state for lead and tin is, respectively:
Match the allotropes of carbon given in List I with the respective characteristics given in List II. **List-I** (A) Coke (B) Diamond (C) Fullerene (D) Graphite **List-II** I. Carbon atoms are $sp^3$ hybridised. II. Used as a dry lubricant III. Used as a reducing agent IV. Cage like molecules Choose the correct answer from the options given below:
Select the element (M) whose trihalides cannot be hydrolysed to form $[M(H_2O)_6]^{3+}$.
For the reaction $PbO_2 \rightarrow PbO$, $\Delta G_{298} < 0$, and for the reaction $SnO_2 \rightarrow SnO$, $\Delta G_{298} > 0$. The most probable oxidation states of Pb and Sn will be respectively:
The correct order of atomic radii of the group 13 elements is-
Identify the incorrect statement:
Which of the following is the correct statement?
The mass of a $2.5 \text{ mL}$ solution (the density of the solution is $2.15 \text{ g/mL}$) in the correct significant figures is:
The $E^{\ominus}$ values for $Al^+/Al = +0.55 \text{ V}$ and $Tl^+/Tl = -0.34 \text{ V}$; $Al^{3+}/Al = -1.66 \text{ V}$ and $Tl^{3+}/Tl = +1.26 \text{ V}$. The incorrect statement among the following is:
Which of the following has the greatest number of molecules?
Which of the following is not a monomer for a high molecular mass silicone polymer?
How many significant figures are present in the following numbers? (I) $161\text{ cm}$ (II) $0.0161$ (III) $1.61$
Match List-I with List-II: List-I (Compounds) (a) Borax (b) Kernite (c) Orthoboric acid (d) Borax bead List-II (Molecular formula) (i) $NaBO_2 + B_2O_3$ (ii) $Na_2B_4O_7 \cdot 4H_2O$ (iii) $H_3BO_3$ (iv) $Na_2B_4O_7 \cdot 10H_2O$ Choose the correct answer from the options given below:
Which among the following has the maximum number of molecules?
A molecule among the following that has the maximum dipole moment is: