MCQ
Which of following metals occurs in native state?
  • A
    Sodium
  • B
    Potassium
  • C
    Magnesium
  • Platinum

Answer

Correct option: D.
Platinum
D

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Which of the following statements Is true for carbonyl group?
In the reaction,

$\ce{CH3COOH ->[SOCl2] X ->[Sodium salt of carboxylic acid] Y}$.

The compound Y was found to be a mixed acid anhydride. Thus, the sodium salt of carboxylic acid used CANNOT be ____________.

A small metal sphere of mass $M$ and density $d_1,$ when dropped in a jar filled with liquid moves with terminal velocity after sometime. The viscous force acting on the sphere is $(d_2 =$ density of liquid and $g =$ gravitational acceleration$)$
$\ce{MnO2 + HCl ->[\Delta] A_{(g)}}$$\ce{A_{(g)} + F2_{(excess)} -> B_{(g)}}$
The gases A and B are respectively ____________.
Select the WRONG statement.
Glass has refractive index $\mu$ with respect to air and the critical angle for a ray of light going from glass to air is $\theta .$ If a ray of light is incident from air on the glass with angle of incidence $\theta$ corresponding angle of refraction is $......$
In the potentiometer experiment, the balancing length with cell $E_1$ of unknown e.m.f. is $\ell_1 cm$. By shunting the cell $E_1$ with resistance ' $R$ ' which is equal to internal resistance $(r)$ of the cell $E_1$, the balancing length $\ell_2$ is ..........
Identify the product that is produced on large scale using tubular tower fermenter.
The equiconvex lens has a focal length 'f'. If the lens is cut along the line perpendicular to principal axis and passing through the pole, what will be the focal length of any half part?
A particle of mass 'm' having charge 'q' is held at rest in uniform electric field of intensity 'E'. When it is released, the kinetic energy attained by it after covering a distance 'y' will be ______.