You probably mean lead chromate since you have mentioned an oxidation state of 2+ for the lead ion and the chromate ion has an oxidation state of 2-.
Lead chromate is yellow. Please see the link.
The formula for nickel (II) dichromate is NiCr2O7.
It has a white color in the form of powder of cyrstals : )
The chemical formula for mercury(II) dichromate is HgCr2O7.
Lead compounds tend to be blue in flame tests
The color of lead II chloride precipitate is white.
lead(II) chromate
The chemical name of SnCr2O7 is tin(IV) dichromate.
Most dichromates, except of alkali metals, are insoluble in water
The oxidation number for lead in lead(IV) dichromate is +4, while the oxidation number for chromium in dichromate is +6.
The formula for nickel (II) dichromate is NiCr2O7.
H2Cr207 is also known as chromic acid.
It has a white color in the form of powder of cyrstals : )
it is a white solid
The chemical formula for mercury(II) dichromate is HgCr2O7.
Lead compounds tend to be blue in flame tests
A double displacement reaction will occur, forming solid lead(II) chromate and soluble potassium nitrate. Lead(II) chromate is a yellow precipitate, while potassium nitrate remains in solution.
The color of lead II chloride precipitate is white.