IIT-JEE 2007 | JEE Advanced Year Wise Previous Years Questions

IIT-JEE 2007

MCQ (Single Correct Answer)

-0.5

The species having bond order different from that in CO is

NO^-

NO⁺

CN^-

N₂

IIT-JEE 2007

MCQ (Single Correct Answer)

-0.5

The question contains STATEMENT - 1 (Assertion) and STATEMENT - 2 (Reason) and has 4 choices (a), (b), (c) and (d) out of which ONLY ONE is correct.
STATEMENT - 1 Alkali metals dissolve in liquid ammonia to give blue solutions. because
STATEMENT - 2 Alkali metals is liquid ammonia give solvated species of the type [M(NH₃)_n]⁺ (M = alkali metals)

Statement - 1 is true and Statement - 2 is true; Statement - 2 is a correct explanation for Statement - 1

Statement - 1 is true and Statement - 2 is true; Statement - 2 is not a correct explanation for Statement - 1

Statement - 1 is True, Statement - 2 is False

Statement - 1 is False, Statement - 2 is True

IIT-JEE 2007

MCQ (Single Correct Answer)

-0.75

Let $$\overrightarrow a \,,\,\overrightarrow b ,\overrightarrow c $$ be unit vectors such that $${\overrightarrow a + \overrightarrow b + \overrightarrow c = \overrightarrow 0 .}$$ Which one of the following is correct ?

$$\overrightarrow a \times \overrightarrow b = b \times \overrightarrow c = \overrightarrow c \times \overrightarrow a = \overrightarrow 0 $$

$$\overrightarrow a \times \overrightarrow b = b \times \overrightarrow c = \overrightarrow c \times \overrightarrow a \ne \overrightarrow 0 $$

$$\overrightarrow a \times \overrightarrow b = b \times \overrightarrow c = \overrightarrow a \times \overrightarrow c \ne \overrightarrow 0 $$

$$\overrightarrow a \times \overrightarrow b ,b \times \overrightarrow c ,\overrightarrow c \times \overrightarrow a $$ are muturally perpendicular

IIT-JEE 2007

MCQ (Single Correct Answer)

-0.75

$${{{d^2}x} \over {d{y^2}}}$$ equals

$${\left( {{{{d^2}y} \over {d{x^2}}}} \right)^{ - 1}}$$

$$ - {\left( {{{{d^2}y} \over {d{x^2}}}} \right)^{ - 1}}{\left( {{{dy} \over {dx}}} \right)^{ - 3}}$$

$$\left( {{{{d^2}y} \over {d{x^2}}}} \right){\left( {{{dy} \over {dx}}} \right)^{ - 2}}$$

$$ - \left( {{{{d^2}y} \over {d{x^2}}}} \right){\left( {{{dy} \over {dx}}} \right)^{ - 3}}$$

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