Question

arrange the metal in the order of their decreasing reactivity.​

Answer 1

Answer:

Metal Ion Reactivity Extraction

Caesium Cs Cs+ reacts with cold water electrolysis

Francium Fr Fr+

Rubidium Rb Rb+

Potassium K K+

Sodium Na Na+

Lithium Li Li+

Barium Ba Ba2+

Radium Ra Ra2+

Strontium Sr Sr2+

Calcium Ca Ca2+

Magnesium Mg Mg2+ reacts very slowly with cold water, but rapidly

in boiling water, and very vigorously with acids

Beryllium Be Be2+ reacts with acids and steam

Aluminium Al Al3+

Titanium Ti Ti4+ reacts with concentrated mineral acids pyrometallurgical extraction using magnesium,

or less commonly other alkali metals, hydrogen or calcium in the Kroll process

Manganese Mn Mn2+ reacts with acids; very poor reaction with steam smelting with coke

Zinc Zn Zn2+

Chromium Cr Cr3+ aluminothermic reaction

Iron Fe Fe2+ smelting with coke

Cadmium Cd Cd2+

Cobalt Co Co2+

Nickel Ni Ni2+

Tin Sn Sn2+

Lead Pb Pb2+

Antimony Sb Sb3+ may react with some strong oxidizing acids heat or physical extraction

Bismuth Bi Bi3+

Copper Cu Cu2+ reacts slowly with air

Tungsten W W3+ may react with some strong oxidizing acids

Mercury Hg Hg2+

Silver Ag Ag+

Gold Au Au3+[5][6]

Platinum Pt Pt4+

xplanation:

Answer 2

Aapka Question hai

look at the pic?

$\huge\mathfrak\red{answer}$

Given:

$(3 \frac{1}{3} {)}^{4}$

$⇒3 \frac{1}{3} 4$

$⇒ 3\frac{3}{4}$

$\\ \\ \\ \\ \\ \sf \colorbox{gold} {\red(ANSWER ᵇʸ ⁿᵃʷᵃᵇ⁰⁰⁰⁸}$

sorry yha par answer dene ke liya wo kiya hai na wha answer dene ka option nahi aaya too hamne yha answer de Diya sorry