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Very pure hydrogen (99.9%) can be made by which of the following processes ?

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In a compound atoms of element Y from ccp lattice and those of element X occupy $2/3_{rd}$ of tetrahedral voids. The formula of the compound will be

A body of mass m = 3.513 kg is moving along the x-axis with a speed of $5.00ms_{−1}$. The magnitude of its momentum is recorded as

hree distinct points A, B and C are given in the 2 - ditmensional c pla nt the poi ne such that the ratio of the distance of any one of them from (1, 0) to the distance from the point (-1, 0) is equal to circumcentre of the triangle ABC is at the point 3 JEE 2009]

The two functional groups present in a typical carbohydrate are

Which one of the following constitutes a group of the isoelectronic species ?

The area of the plane region bounded by the curves $x+2y_{2}=0$and $x+3y_{2}=1$is equal to

The function $f(x)=tan_{−1}(sinx+cosx)$is an increasing function in

If the straight lines $kx−1 =2y−2 =3z−3 $ and $3x−2 =ky−3 =2z−1 $intersect at a point, then the integer k is equal to